diff --git a/examples/editVoxels.js b/examples/editVoxels.js
index 96bb09e6d6..c1f0c8dc49 100644
--- a/examples/editVoxels.js
+++ b/examples/editVoxels.js
@@ -7,9 +7,11 @@
 //
 //  Captures mouse clicks and edits voxels accordingly.
 //
-//  click = create a new voxel on this face, same color as old 
-//  Alt + click = delete this voxel 
+//  click = create a new voxel on this face, same color as old (default color picker state)
+//  right click or control + click = delete this voxel 
 //  shift + click = recolor this voxel
+//  1 - 8 = pick new color from palette
+//  9 = create a new voxel in front of the camera 
 //
 //  Click and drag to create more new voxels in the same direction
 //
@@ -18,15 +20,41 @@ function vLength(v) {
     return Math.sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
 }
 
+function vMinus(a, b) { 
+    var rval = { x: a.x - b.x, y: a.y - b.y, z: a.z - b.z };
+    return rval;
+}
+
+var NEW_VOXEL_SIZE = 1.0;
+var NEW_VOXEL_DISTANCE_FROM_CAMERA = 3.0;
+var ORBIT_RATE_ALTITUDE = 200.0;
+var ORBIT_RATE_AZIMUTH = 90.0;
+var PIXELS_PER_EXTRUDE_VOXEL = 16;
+
+var oldMode = Camera.getMode();
+
 var key_alt = false;
 var key_shift = false;
 var isAdding = false; 
-
+var isExtruding = false; 
+var isOrbiting = false;
+var orbitAzimuth = 0.0;
+var orbitAltitude = 0.0;
+var orbitCenter = { x: 0, y: 0, z: 0 };
+var orbitPosition = { x: 0, y: 0, z: 0 };
+var orbitRadius = 0.0;
+var extrudeDirection = { x: 0, y: 0, z: 0 };
+var extrudeScale = 0.0;
 var lastVoxelPosition = { x: 0, y: 0, z: 0 };
 var lastVoxelColor = { red: 0, green: 0, blue: 0 };
 var lastVoxelScale = 0;
 var dragStart = { x: 0, y: 0 };
 
+var mouseX = 0;
+var mouseY = 0; 
+
+
+
 //  Create a table of the different colors you can choose
 var colors = new Array();
 colors[0] = { red: 237, green: 175, blue: 0 };
@@ -37,31 +65,70 @@ colors[4] = { red: 193, green: 99,  blue: 122 };
 colors[5] = { red: 255, green: 54,  blue: 69 };
 colors[6] = { red: 124, green: 36,  blue: 36 };
 colors[7] = { red: 63,  green: 35,  blue: 19 };
-var numColors = 6;
-var whichColor = 0;
+var numColors = 8;
+var whichColor = -1;            //  Starting color is 'Copy' mode
 
 //  Create sounds for adding, deleting, recoloring voxels 
-var addSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Electronic/ElectronicBurst1.raw");
-var deleteSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Bubbles/bubbles1.raw");
-var changeColorSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Electronic/ElectronicBurst6.raw");
+var addSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Voxels/voxel+create.raw");
+var deleteSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Voxels/voxel+delete.raw");
+var changeColorSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Voxels/voxel+edit.raw");
+var clickSound = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Switches+and+sliders/toggle+switch+-+medium.raw");
 var audioOptions = new AudioInjectionOptions();

+audioOptions.volume = 0.5;
+
+function setAudioPosition() {
+    var camera = Camera.getPosition();
+    var forwardVector = Quat.getFront(MyAvatar.orientation);
+    audioOptions.position = Vec3.sum(camera, forwardVector);
+}
+
+function getNewVoxelPosition() { 
+    var camera = Camera.getPosition();
+    var forwardVector = Quat.getFront(MyAvatar.orientation);
+    var newPosition = Vec3.sum(camera, Vec3.multiply(forwardVector, NEW_VOXEL_DISTANCE_FROM_CAMERA));
+    return newPosition;
+}
+
+function fixEulerAngles(eulers) {
+    var rVal = { x: 0, y: 0, z: eulers.z };
+    if (eulers.x >= 90.0) {
+        rVal.x = 180.0 - eulers.x;
+        rVal.y = eulers.y - 180.0;
+    } else if (eulers.x <= -90.0) {
+        rVal.x = 180.0 - eulers.x;
+        rVal.y = eulers.y - 180.0;
+    }
+    return rVal;
+}
 
 function mousePressEvent(event) {
+    mouseX = event.x;
+    mouseY = event.y;
     var pickRay = Camera.computePickRay(event.x, event.y);
     var intersection = Voxels.findRayIntersection(pickRay);
-    audioOptions.volume = 1.0;
-    audioOptions.position = { x: intersection.voxel.x, y: intersection.voxel.y, z: intersection.voxel.z };
-
+    audioOptions.position = Vec3.sum(pickRay.origin, pickRay.direction);
     if (intersection.intersects) {
-         if (key_alt) {
+        if (event.isAlt) {
+            // start orbit camera! 
+            var cameraPosition = Camera.getPosition();
+            oldMode = Camera.getMode();
+            Camera.setMode("independent");
+            isOrbiting = true;
+            Camera.keepLookingAt(intersection.intersection);
+            // get position for initial azimuth, elevation
+            orbitCenter = intersection.intersection; 
+            var orbitVector = Vec3.subtract(cameraPosition, orbitCenter);
+            orbitRadius = vLength(orbitVector); 
+            orbitAzimuth = Math.atan2(orbitVector.z, orbitVector.x);
+            orbitAltitude = Math.asin(orbitVector.y / Vec3.length(orbitVector));
+
+        } else if (event.isRightButton || event.isControl) {
             //  Delete voxel
             Voxels.eraseVoxel(intersection.voxel.x, intersection.voxel.y, intersection.voxel.z, intersection.voxel.s);
             Audio.playSound(deleteSound, audioOptions);
 
-        } else if (key_shift) {
+        } else if (event.isShifted) {
             //  Recolor Voxel
-            whichColor++;
-            if (whichColor == numColors) whichColor = 0; 
             Voxels.setVoxel(intersection.voxel.x, 
                             intersection.voxel.y, 
                             intersection.voxel.z, 
@@ -70,7 +137,9 @@ function mousePressEvent(event) {
             Audio.playSound(changeColorSound, audioOptions);
         } else {
             //  Add voxel on face
-            var newVoxel = {    
+            if (whichColor == -1) {
+                //  Copy mode - use clicked voxel color
+                var newVoxel = {    
                     x: intersection.voxel.x,
                     y: intersection.voxel.y,
                     z: intersection.voxel.z,
@@ -78,6 +147,16 @@ function mousePressEvent(event) {
                     red: intersection.voxel.red,
                     green: intersection.voxel.green,
                     blue: intersection.voxel.blue };
+            } else {
+                var newVoxel = {    
+                    x: intersection.voxel.x,
+                    y: intersection.voxel.y,
+                    z: intersection.voxel.z,    
+                    s: intersection.voxel.s,
+                    red: colors[whichColor].red,
+                    green: colors[whichColor].green,
+                    blue: colors[whichColor].blue };
+            }
                     
             if (intersection.face == "MIN_X_FACE") {
                 newVoxel.x -= newVoxel.s;
@@ -108,55 +187,113 @@ function mousePressEvent(event) {
 function keyPressEvent(event) {
     key_alt = event.isAlt;
     key_shift = event.isShifted;
+    var nVal = parseInt(event.text);
+    if (event.text == "0") {
+        print("Color = Copy");
+        whichColor = -1;
+        Audio.playSound(clickSound, audioOptions);
+    } else if ((nVal > 0) && (nVal <= numColors)) {
+        whichColor = nVal - 1;
+        print("Color = " + (whichColor + 1));
+        Audio.playSound(clickSound, audioOptions);
+    } else if (event.text == "9") {
+        // Create a brand new 1 meter voxel in front of your avatar 
+        var color = whichColor; 
+        if (color == -1) color = 0;
+        var newPosition = getNewVoxelPosition();
+        var newVoxel = {    
+                    x: newPosition.x,
+                    y: newPosition.y ,
+                    z: newPosition.z,    
+                    s: NEW_VOXEL_SIZE,
+                    red: colors[color].red,
+                    green: colors[color].green,
+                    blue: colors[color].blue };
+        Voxels.setVoxel(newVoxel.x, newVoxel.y, newVoxel.z, newVoxel.s, newVoxel.red, newVoxel.green, newVoxel.blue);
+        setAudioPosition();
+        Audio.playSound(addSound, audioOptions);
+    } else if (event.text == " ") {
+        //  Reset my orientation!
+        var orientation = { x:0, y:0, z:0, w:1 };
+        Camera.setOrientation(orientation);
+        MyAvatar.orientation = orientation;
+    }
 }
+
 function keyReleaseEvent(event) {
     key_alt = false;
     key_shift = false; 
 }
 function mouseMoveEvent(event) {
+    if (isOrbiting) {
+        var cameraOrientation = Camera.getOrientation();
+        var origEulers = Quat.safeEulerAngles(cameraOrientation);
+        var newEulers = fixEulerAngles(Quat.safeEulerAngles(cameraOrientation));
+        var dx = event.x - mouseX; 
+        var dy = event.y - mouseY;
+        orbitAzimuth += dx / ORBIT_RATE_AZIMUTH;
+        orbitAltitude += dy / ORBIT_RATE_ALTITUDE;
+         var orbitVector = { x:(Math.cos(orbitAltitude) * Math.cos(orbitAzimuth)) * orbitRadius, 
+                            y:Math.sin(orbitAltitude) * orbitRadius,
+                            z:(Math.cos(orbitAltitude) * Math.sin(orbitAzimuth)) * orbitRadius }; 
+        orbitPosition = Vec3.sum(orbitCenter, orbitVector);
+        Camera.setPosition(orbitPosition);
+        mouseX = event.x; 
+        mouseY = event.y;
+    }
     if (isAdding) {
-        var pickRay = Camera.computePickRay(event.x, event.y);
-        var lastVoxelDistance = { x: pickRay.origin.x - lastVoxelPosition.x, 
+        //  Watch the drag direction to tell which way to 'extrude' this voxel
+        if (!isExtruding) {
+            var pickRay = Camera.computePickRay(event.x, event.y);
+            var lastVoxelDistance = { x: pickRay.origin.x - lastVoxelPosition.x, 
                                     y: pickRay.origin.y - lastVoxelPosition.y, 
                                     z: pickRay.origin.z - lastVoxelPosition.z };
-        var distance = vLength(lastVoxelDistance);
-        var mouseSpot = { x: pickRay.direction.x * distance, y: pickRay.direction.y * distance, z: pickRay.direction.z * distance };
-        mouseSpot.x += pickRay.origin.x;
-        mouseSpot.y += pickRay.origin.y;
-        mouseSpot.z += pickRay.origin.z;
-        var dx = mouseSpot.x - lastVoxelPosition.x;
-        var dy = mouseSpot.y - lastVoxelPosition.y;
-        var dz = mouseSpot.z - lastVoxelPosition.z;
-        if (dx > lastVoxelScale) {
-            lastVoxelPosition.x += lastVoxelScale;
-            Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
-                            lastVoxelScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
-        } else if (dx < -lastVoxelScale) {
-            lastVoxelPosition.x -= lastVoxelScale;
-            Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
-                            lastVoxelScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
-        } else if (dy > lastVoxelScale) {
-            lastVoxelPosition.y += lastVoxelScale;
-            Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
-                            lastVoxelScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
-        } else if (dy < -lastVoxelScale) {
-            lastVoxelPosition.y -= lastVoxelScale;
-            Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
-                            lastVoxelScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
-        } else if (dz > lastVoxelScale) {
-            lastVoxelPosition.z += lastVoxelScale;
-            Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
-                            lastVoxelScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
-        } else if (dz < -lastVoxelScale) {
-            lastVoxelPosition.z -= lastVoxelScale;
-            Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
-                            lastVoxelScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
+            var distance = vLength(lastVoxelDistance);
+            var mouseSpot = { x: pickRay.direction.x * distance, y: pickRay.direction.y * distance, z: pickRay.direction.z * distance };
+            mouseSpot.x += pickRay.origin.x;
+            mouseSpot.y += pickRay.origin.y;
+            mouseSpot.z += pickRay.origin.z;
+            var dx = mouseSpot.x - lastVoxelPosition.x;
+            var dy = mouseSpot.y - lastVoxelPosition.y;
+            var dz = mouseSpot.z - lastVoxelPosition.z;
+            extrudeScale = lastVoxelScale;
+            extrudeDirection = { x: 0, y: 0, z: 0 };
+            isExtruding = true;
+            if (dx > lastVoxelScale) extrudeDirection.x = extrudeScale;
+            else if (dx < -lastVoxelScale) extrudeDirection.x = -extrudeScale;
+            else if (dy > lastVoxelScale) extrudeDirection.y = extrudeScale;
+            else if (dy < -lastVoxelScale) extrudeDirection.y = -extrudeScale;
+            else if (dz > lastVoxelScale) extrudeDirection.z = extrudeScale;
+            else if (dz < -lastVoxelScale) extrudeDirection.z = -extrudeScale;
+            else isExtruding = false; 
+        } else {
+            //  We have got an extrusion direction, now look for mouse move beyond threshold to add new voxel
+            var dx = event.x - mouseX; 
+            var dy = event.y - mouseY;
+            if (Math.sqrt(dx*dx + dy*dy) > PIXELS_PER_EXTRUDE_VOXEL)  {
+                lastVoxelPosition = Vec3.sum(lastVoxelPosition, extrudeDirection);
+                Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, 
+                            extrudeScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
+                mouseX = event.x;
+                mouseY = event.y;
+            }
         }
     }
 }
 
 function mouseReleaseEvent(event) {
+    if (isOrbiting) {
+        var cameraOrientation = Camera.getOrientation();
+        var eulers = Quat.safeEulerAngles(cameraOrientation);
+        MyAvatar.position = Camera.getPosition();
+        MyAvatar.orientation = cameraOrientation;
+        Camera.stopLooking();
+        Camera.setMode(oldMode);
+        Camera.setOrientation(cameraOrientation);
+    }
     isAdding = false;
+    isOrbiting = false; 
+    isExtruding = false; 
 }
 
 Controller.mousePressEvent.connect(mousePressEvent);
diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 004b71074b..96ace9076a 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -2146,15 +2146,6 @@ void Application::updateThreads(float deltaTime) {
     }
 }
 
-void Application::updateParticles(float deltaTime) {
-    bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
-    PerformanceWarning warn(showWarnings, "Application::updateParticles()");
-
-    if (Menu::getInstance()->isOptionChecked(MenuOption::ParticleCloud)) {
-        _cloud.simulate(deltaTime);
-    }
-}
-
 void Application::updateMetavoxels(float deltaTime) {
     bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
     PerformanceWarning warn(showWarnings, "Application::updateMetavoxels()");
@@ -2276,7 +2267,6 @@ void Application::update(float deltaTime) {
     updateMyAvatar(deltaTime); // Sample hardware, update view frustum if needed, and send avatar data to mixer/nodes
     updateThreads(deltaTime); // If running non-threaded, then give the threads some time to process...
     _avatarManager.updateOtherAvatars(deltaTime); //loop through all the other avatars and simulate them...
-    updateParticles(deltaTime); // Simulate particle cloud movements
     updateMetavoxels(deltaTime); // update metavoxels
     updateCamera(deltaTime); // handle various camera tweaks like off axis projection
     updateDialogs(deltaTime); // update various stats dialogs if present
@@ -2711,10 +2701,6 @@ void Application::displaySide(Camera& whichCamera, bool selfAvatarOnly) {
         // disable specular lighting for ground and voxels
         glMaterialfv(GL_FRONT, GL_SPECULAR, NO_SPECULAR_COLOR);
 
-        //  Draw Cloud Particles
-        if (Menu::getInstance()->isOptionChecked(MenuOption::ParticleCloud)) {
-            _cloud.render();
-        }
         //  Draw voxels
         if (Menu::getInstance()->isOptionChecked(MenuOption::Voxels)) {
             PerformanceWarning warn(Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings),
@@ -3998,6 +3984,32 @@ void Application::saveScripts() {
     settings->endArray();
 }
 
+void Application::stopAllScripts() {
+    // stops all current running scripts
+    QList<QAction*> scriptActions = Menu::getInstance()->getActiveScriptsMenu()->actions();
+    foreach (QAction* scriptAction, scriptActions) {
+        scriptAction->activate(QAction::Trigger);
+        qDebug() << "stopping script..." << scriptAction->text();
+    }
+    _activeScripts.clear();
+}
+
+void Application::reloadAllScripts() {
+    // remember all the current scripts so we can reload them
+    QStringList reloadList = _activeScripts;
+    // reloads all current running scripts
+    QList<QAction*> scriptActions = Menu::getInstance()->getActiveScriptsMenu()->actions();
+    foreach (QAction* scriptAction, scriptActions) {
+        scriptAction->activate(QAction::Trigger);
+        qDebug() << "stopping script..." << scriptAction->text();
+    }
+    _activeScripts.clear();
+    foreach (QString scriptName, reloadList){
+        qDebug() << "reloading script..." << scriptName;
+        loadScript(scriptName);
+    }
+}
+
 void Application::removeScriptName(const QString& fileNameString) {
   _activeScripts.removeOne(fileNameString);
 }
diff --git a/interface/src/Application.h b/interface/src/Application.h
index ff6e08758b..3153150457 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -32,7 +32,6 @@
 
 #include "BandwidthMeter.h"
 #include "Camera.h"
-#include "Cloud.h"
 #include "DatagramProcessor.h"
 #include "Environment.h"
 #include "GLCanvas.h"
@@ -232,6 +231,8 @@ public slots:
     void loadDialog();
     void toggleLogDialog();
     void initAvatarAndViewFrustum();
+    void stopAllScripts();
+    void reloadAllScripts();
 
 private slots:
     void timer();
@@ -284,7 +285,6 @@ private:
     void updateSixense(float deltaTime);
     void updateSerialDevices(float deltaTime);
     void updateThreads(float deltaTime);
-    void updateParticles(float deltaTime);
     void updateMetavoxels(float deltaTime);
     void updateCamera(float deltaTime);
     void updateDialogs(float deltaTime);
@@ -351,8 +351,6 @@ private:
 
     Stars _stars;
 
-    Cloud _cloud;
-
     VoxelSystem _voxels;
     VoxelTree _clipboard; // if I copy/paste
     VoxelImporter* _voxelImporter;
diff --git a/interface/src/Audio.cpp b/interface/src/Audio.cpp
index 6eee4453d4..0cf67be2bf 100644
--- a/interface/src/Audio.cpp
+++ b/interface/src/Audio.cpp
@@ -37,6 +37,8 @@ static const short JITTER_BUFFER_SAMPLES = JITTER_BUFFER_LENGTH_MSECS * NUM_AUDI
 
 static const float AUDIO_CALLBACK_MSECS = (float) NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL / (float)SAMPLE_RATE * 1000.0;
 
+static const int NUMBER_OF_NOISE_SAMPLE_FRAMES = 300;
+
 // Mute icon configration
 static const int ICON_SIZE = 24;
 static const int ICON_LEFT = 0;
@@ -65,7 +67,8 @@ Audio::Audio(Oscilloscope* scope, int16_t initialJitterBufferSamples, QObject* p
     _measuredJitter(0),
     _jitterBufferSamples(initialJitterBufferSamples),
     _lastInputLoudness(0),
-    _averageInputLoudness(0),
+    _noiseGateMeasuredFloor(0),
+    _noiseGateSampleCounter(0),
     _noiseGateOpen(false),
     _noiseGateEnabled(true),
     _noiseGateFramesToClose(0),
@@ -82,6 +85,8 @@ Audio::Audio(Oscilloscope* scope, int16_t initialJitterBufferSamples, QObject* p
 {
     // clear the array of locally injected samples
     memset(_localProceduralSamples, 0, NETWORK_BUFFER_LENGTH_BYTES_PER_CHANNEL);
+    // Create the noise sample array
+    _noiseSampleFrames = new float[NUMBER_OF_NOISE_SAMPLE_FRAMES];
 }
 
 void Audio::init(QGLWidget *parent) {
@@ -351,26 +356,66 @@ void Audio::handleAudioInput() {
                              NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL,
                              _inputFormat, _desiredInputFormat);
 
+            //
+            //  Impose Noise Gate
+            //
+            //  The Noise Gate is used to reject constant background noise by measuring the noise
+            //  floor observed at the microphone and then opening the 'gate' to allow microphone
+            //  signals to be transmitted when the microphone samples average level exceeds a multiple
+            //  of the noise floor.
+            //
+            //  NOISE_GATE_HEIGHT:  How loud you have to speak relative to noise background to open the gate.
+            //                      Make this value lower for more sensitivity and less rejection of noise.
+            //  NOISE_GATE_WIDTH:   The number of samples in an audio frame for which the height must be exceeded
+            //                      to open the gate.
+            //  NOISE_GATE_CLOSE_FRAME_DELAY:  Once the noise is below the gate height for the frame, how many frames
+            //                      will we wait before closing the gate.
+            //  NOISE_GATE_FRAMES_TO_AVERAGE:  How many audio frames should we average together to compute noise floor.
+            //                      More means better rejection but also can reject continuous things like singing.
+            // NUMBER_OF_NOISE_SAMPLE_FRAMES:  How often should we re-evaluate the noise floor?
+            
+
             float loudness = 0;
             float thisSample = 0;
             int samplesOverNoiseGate = 0;
             
-            const float NOISE_GATE_HEIGHT = 3.f;
+            const float NOISE_GATE_HEIGHT = 7.f;
             const int NOISE_GATE_WIDTH = 5;
-            const int NOISE_GATE_CLOSE_FRAME_DELAY = 30;
+            const int NOISE_GATE_CLOSE_FRAME_DELAY = 5;
+            const int NOISE_GATE_FRAMES_TO_AVERAGE = 5;
             
             for (int i = 0; i < NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL; i++) {
                 thisSample = fabsf(monoAudioSamples[i]);
                 loudness += thisSample;
                 //  Noise Reduction:  Count peaks above the average loudness
-                if (thisSample > (_averageInputLoudness * NOISE_GATE_HEIGHT)) {
+                if (thisSample > (_noiseGateMeasuredFloor * NOISE_GATE_HEIGHT)) {
                     samplesOverNoiseGate++;
                 }
             }
             _lastInputLoudness = loudness / NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL;
-            const float LOUDNESS_AVERAGING_FRAMES = 1000.f;   //  This will be about 10 seconds
-            _averageInputLoudness = (1.f - 1.f / LOUDNESS_AVERAGING_FRAMES) * _averageInputLoudness + (1.f / LOUDNESS_AVERAGING_FRAMES) * _lastInputLoudness;
             
+            float averageOfAllSampleFrames = 0.f;
+            _noiseSampleFrames[_noiseGateSampleCounter++] = _lastInputLoudness;
+            if (_noiseGateSampleCounter == NUMBER_OF_NOISE_SAMPLE_FRAMES) {
+                float smallestSample = FLT_MAX;
+                for (int i = 0; i <= NUMBER_OF_NOISE_SAMPLE_FRAMES - NOISE_GATE_FRAMES_TO_AVERAGE; i+= NOISE_GATE_FRAMES_TO_AVERAGE) {
+                    float thisAverage = 0.0f;
+                    for (int j = i; j < i + NOISE_GATE_FRAMES_TO_AVERAGE; j++) {
+                        thisAverage += _noiseSampleFrames[j];
+                        averageOfAllSampleFrames += _noiseSampleFrames[j];
+                    }
+                    thisAverage /= NOISE_GATE_FRAMES_TO_AVERAGE;
+                    
+                    if (thisAverage < smallestSample) {
+                        smallestSample = thisAverage;
+                    }
+                }
+                averageOfAllSampleFrames /= NUMBER_OF_NOISE_SAMPLE_FRAMES;
+                _noiseGateMeasuredFloor = smallestSample;
+                _noiseGateSampleCounter = 0;
+                //qDebug("smallest sample = %.1f, avg of all = %.1f",  _noiseGateMeasuredFloor, averageOfAllSampleFrames);
+            }
+
             if (_noiseGateEnabled) {
                 if (samplesOverNoiseGate > NOISE_GATE_WIDTH) {
                     _noiseGateOpen = true;
@@ -487,7 +532,7 @@ void Audio::addReceivedAudioToBuffer(const QByteArray& audioByteArray) {
     if (!_ringBuffer.isStarved() && _audioOutput->bytesFree() == _audioOutput->bufferSize()) {
         // we don't have any audio data left in the output buffer
         // we just starved
-        qDebug() << "Audio output just starved.";
+        //qDebug() << "Audio output just starved.";
         _ringBuffer.setIsStarved(true);
         _numFramesDisplayStarve = 10;
     }
@@ -505,7 +550,7 @@ void Audio::addReceivedAudioToBuffer(const QByteArray& audioByteArray) {
         if (!_ringBuffer.isNotStarvedOrHasMinimumSamples(NETWORK_BUFFER_LENGTH_SAMPLES_STEREO
                                                          + (_jitterBufferSamples * 2))) {
             // starved and we don't have enough to start, keep waiting
-            qDebug() << "Buffer is starved and doesn't have enough samples to start. Held back.";
+            //qDebug() << "Buffer is starved and doesn't have enough samples to start. Held back.";
         } else {
             //  We are either already playing back, or we have enough audio to start playing back.
             _ringBuffer.setIsStarved(false);
diff --git a/interface/src/Audio.h b/interface/src/Audio.h
index 88e2731006..34a3daad30 100644
--- a/interface/src/Audio.h
+++ b/interface/src/Audio.h
@@ -45,7 +45,7 @@ public:
     
     void render(int screenWidth, int screenHeight);
     
-    float getLastInputLoudness() const { return glm::max(_lastInputLoudness - _averageInputLoudness, 0.f); }
+    float getLastInputLoudness() const { return glm::max(_lastInputLoudness - _noiseGateMeasuredFloor, 0.f); }
     
     void setNoiseGateEnabled(bool noiseGateEnabled) { _noiseGateEnabled = noiseGateEnabled; }
     
@@ -109,7 +109,9 @@ private:
     float _measuredJitter;
     int16_t _jitterBufferSamples;
     float _lastInputLoudness;
-    float _averageInputLoudness;
+    float _noiseGateMeasuredFloor;
+    float* _noiseSampleFrames;
+    int _noiseGateSampleCounter;
     bool _noiseGateOpen;
     bool _noiseGateEnabled;
     int _noiseGateFramesToClose;
diff --git a/interface/src/Cloud.cpp b/interface/src/Cloud.cpp
deleted file mode 100644
index a89ee04810..0000000000
--- a/interface/src/Cloud.cpp
+++ /dev/null
@@ -1,85 +0,0 @@
-//
-//  Cloud.cpp
-//  interface
-//
-//  Created by Philip Rosedale on 11/17/12.
-//  Copyright (c) 2012 High Fidelity, Inc. All rights reserved.
-//
-
-#include <iostream>
-#include <InterfaceConfig.h>
-#include "Cloud.h"
-#include "Util.h"
-#include "Field.h"
-
-const int NUM_PARTICLES = 100000;
-const float FIELD_COUPLE = 0.001f;
-const bool RENDER_FIELD = false;
-
-Cloud::Cloud() {
-    glm::vec3 box = glm::vec3(PARTICLE_WORLD_SIZE);
-    _bounds = box;
-    _count = NUM_PARTICLES;
-    _particles = new Particle[_count];
-    _field = new Field(PARTICLE_WORLD_SIZE, FIELD_COUPLE);
-    
-    for (unsigned int i = 0; i < _count; i++) {
-        _particles[i].position = randVector() * box;
-        const float INIT_VEL_SCALE = 0.03f;
-        _particles[i].velocity = randVector() * ((float)PARTICLE_WORLD_SIZE * INIT_VEL_SCALE);
-        _particles[i].color = randVector();
-     }
-}
-
-void Cloud::render() {
-    if (RENDER_FIELD) {
-        _field->render();
-    }
-    
-    glPointSize(3.0f);
-    glDisable(GL_TEXTURE_2D);
-    glEnable(GL_POINT_SMOOTH);
-    
-    glEnableClientState(GL_VERTEX_ARRAY);
-    glEnableClientState(GL_COLOR_ARRAY);
-    glVertexPointer(3, GL_FLOAT, 3 * sizeof(glm::vec3), &_particles[0].position);
-    glColorPointer(3, GL_FLOAT, 3 * sizeof(glm::vec3), &_particles[0].color);
-    glDrawArrays(GL_POINTS, 0, NUM_PARTICLES);
-    glDisableClientState(GL_VERTEX_ARRAY);
-    glDisableClientState(GL_COLOR_ARRAY);
-     
-}
-
-void Cloud::simulate (float deltaTime) {
-    unsigned int i;
-    _field->simulate(deltaTime);
-    for (i = 0; i < _count; ++i) {
-        
-        // Update position 
-        _particles[i].position += _particles[i].velocity * deltaTime;
-
-        // Decay Velocity (Drag)
-        const float CONSTANT_DAMPING = 0.15f;
-        _particles[i].velocity *= (1.f - CONSTANT_DAMPING * deltaTime);
-                
-        // Interact with Field
-        _field->interact(deltaTime, _particles[i].position, _particles[i].velocity);
-                      
-        //  Update color to velocity 
-        _particles[i].color = (glm::normalize(_particles[i].velocity) * 0.5f) + 0.5f;
-        
-        // Bounce at bounds
-        if ((_particles[i].position.x > _bounds.x) || (_particles[i].position.x < 0.f)) {
-            _particles[i].position.x = glm::clamp(_particles[i].position.x, 0.f, _bounds.x);
-            _particles[i].velocity.x *= -1.f;
-        }
-        if ((_particles[i].position.y > _bounds.y) || (_particles[i].position.y < 0.f)) {
-            _particles[i].position.y = glm::clamp(_particles[i].position.y, 0.f, _bounds.y);
-            _particles[i].velocity.y *= -1.f;
-        }
-        if ((_particles[i].position.z > _bounds.z) || (_particles[i].position.z < 0.f)) {
-            _particles[i].position.z = glm::clamp(_particles[i].position.z, 0.f, _bounds.z);
-            _particles[i].velocity.z *= -1.f;
-        }
-    }
- }
diff --git a/interface/src/Cloud.h b/interface/src/Cloud.h
deleted file mode 100644
index fcf414b62e..0000000000
--- a/interface/src/Cloud.h
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-//  Cloud.h
-//  interface
-//
-//  Created by Philip Rosedale on 11/17/12.
-//  Copyright (c) 2012 High Fidelity, Inc. All rights reserved.
-//
-
-#ifndef __interface__Cloud__
-#define __interface__Cloud__
-
-#include "Field.h"
-
-#define PARTICLE_WORLD_SIZE 256.0
-
-class Cloud {
-public:
-    Cloud();
-    void simulate(float deltaTime);
-    void render();
-    
-private:
-    struct Particle {
-        glm::vec3 position, velocity, color;
-       }* _particles;
-    
-    unsigned int _count;
-    glm::vec3 _bounds;
-    Field* _field;
-};
-
-#endif
diff --git a/interface/src/Menu.cpp b/interface/src/Menu.cpp
index 7eb5807c6f..f16a276653 100644
--- a/interface/src/Menu.cpp
+++ b/interface/src/Menu.cpp
@@ -93,6 +93,8 @@ Menu::Menu() :
 
     addDisabledActionAndSeparator(fileMenu, "Scripts");
     addActionToQMenuAndActionHash(fileMenu, MenuOption::LoadScript, Qt::CTRL | Qt::Key_O, appInstance, SLOT(loadDialog()));
+    addActionToQMenuAndActionHash(fileMenu, MenuOption::StopAllScripts, 0, appInstance, SLOT(stopAllScripts()));
+    addActionToQMenuAndActionHash(fileMenu, MenuOption::ReloadAllScripts, 0, appInstance, SLOT(reloadAllScripts()));
     _activeScriptsMenu = fileMenu->addMenu("Running Scripts");
 
     addDisabledActionAndSeparator(fileMenu, "Voxels");
@@ -161,7 +163,7 @@ Menu::Menu() :
     #endif
 
     addDisabledActionAndSeparator(editMenu, "Physics");
-    addCheckableActionToQMenuAndActionHash(editMenu, MenuOption::Gravity, Qt::SHIFT | Qt::Key_G, true);
+    addCheckableActionToQMenuAndActionHash(editMenu, MenuOption::Gravity, Qt::SHIFT | Qt::Key_G, false);
 
     
     addCheckableActionToQMenuAndActionHash(editMenu, MenuOption::ClickToFly);
@@ -238,9 +240,9 @@ Menu::Menu() :
                                            SLOT(setFullscreen(bool)));
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::FirstPerson, Qt::Key_P, true,
                                             appInstance,SLOT(cameraMenuChanged()));
-    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Mirror, Qt::SHIFT | Qt::Key_H);
-    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::FullscreenMirror, Qt::Key_H,false,
-                                            appInstance,SLOT(cameraMenuChanged()));
+    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Mirror, Qt::SHIFT | Qt::Key_H, true);
+    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::FullscreenMirror, Qt::Key_H, false,
+                                            appInstance, SLOT(cameraMenuChanged()));
                                             
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::Enable3DTVMode, 0,
                                            false,
@@ -266,14 +268,8 @@ Menu::Menu() :
                                   appInstance->getAvatar(),
                                   SLOT(resetSize()));
 
-    addCheckableActionToQMenuAndActionHash(viewMenu,
-                                           MenuOption::OffAxisProjection,
-                                           0,
-                                           true);
-    addCheckableActionToQMenuAndActionHash(viewMenu,
-                                           MenuOption::TurnWithHead,
-                                           0,
-                                           true);
+    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::OffAxisProjection, 0, false);
+    addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::TurnWithHead, 0, false);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::MoveWithLean, 0, false);
     addCheckableActionToQMenuAndActionHash(viewMenu, MenuOption::HeadMouse, 0, false);
 
@@ -298,7 +294,6 @@ Menu::Menu() :
                                   appInstance->getGlowEffect(),
                                   SLOT(cycleRenderMode()));
 
-    addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::ParticleCloud, 0, false);
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::Shadows, 0, false);
     addCheckableActionToQMenuAndActionHash(renderOptionsMenu, MenuOption::Metavoxels, 0, false);
 
@@ -339,14 +334,14 @@ Menu::Menu() :
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::Avatars, 0, true);
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::CollisionProxies);
 
-    addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::LookAtVectors, 0, true);
+    addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::LookAtVectors, 0, false);
     addCheckableActionToQMenuAndActionHash(avatarOptionsMenu,
                                            MenuOption::FaceshiftTCP,
                                            0,
                                            false,
                                            appInstance->getFaceshift(),
                                            SLOT(setTCPEnabled(bool)));
-    addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::ChatCircling, 0, true);
+    addCheckableActionToQMenuAndActionHash(avatarOptionsMenu, MenuOption::ChatCircling, 0, false);
 
     QMenu* handOptionsMenu = developerMenu->addMenu("Hand Options");
 
@@ -356,7 +351,7 @@ Menu::Menu() :
                                            true,
                                            appInstance->getSixenseManager(),
                                            SLOT(setFilter(bool)));
-    addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::DisplayLeapHands, 0, true);
+    addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::DisplayHands, 0, true);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::DisplayHandTargets, 0, false);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::VoxelDrumming, 0, false);
     addCheckableActionToQMenuAndActionHash(handOptionsMenu, MenuOption::PlaySlaps, 0, false);
diff --git a/interface/src/Menu.h b/interface/src/Menu.h
index 742b9fc66f..31b19a64c6 100644
--- a/interface/src/Menu.h
+++ b/interface/src/Menu.h
@@ -183,7 +183,7 @@ namespace MenuOption {
     const QString DisableDeltaSending = "Disable Delta Sending";
     const QString DisableLowRes = "Disable Lower Resolution While Moving";
     const QString DisplayFrustum = "Display Frustum";
-    const QString DisplayLeapHands = "Display Leap Hands";
+    const QString DisplayHands = "Display Hands";
     const QString DisplayHandTargets = "Display Hand Targets";
     const QString FilterSixense = "Smooth Sixense Movement";
     const QString DontRenderVoxels = "Don't call _voxels.render()";
@@ -223,7 +223,6 @@ namespace MenuOption {
     const QString KillLocalVoxels = "Kill Local Voxels";
     const QString GoHome = "Go Home";
     const QString Gravity = "Use Gravity";
-    const QString ParticleCloud = "Particle Cloud";
     const QString LodTools = "LOD Tools";
     const QString Log = "Log";
     const QString Login = "Login";
@@ -244,8 +243,10 @@ namespace MenuOption {
     const QString PasteVoxels = "Paste";
     const QString PasteToVoxel = "Paste to Voxel...";
     const QString PipelineWarnings = "Show Render Pipeline Warnings";
+    const QString PlaySlaps = "Play Slaps";
     const QString Preferences = "Preferences...";
     const QString RandomizeVoxelColors = "Randomize Voxel TRUE Colors";
+    const QString ReloadAllScripts = "Reload All Scripts";
     const QString ResetAvatarSize = "Reset Avatar Size";
     const QString ResetSwatchColors = "Reset Swatch Colors";
     const QString RunTimingTests = "Run Timing Tests";
@@ -254,11 +255,10 @@ namespace MenuOption {
     const QString SettingsExport = "Export Settings";
     const QString ShowAllLocalVoxels = "Show All Local Voxels";
     const QString ShowTrueColors = "Show TRUE Colors";
-    const QString VoxelDrumming = "Voxel Drumming";
-    const QString PlaySlaps = "Play Slaps";
     const QString SuppressShortTimings = "Suppress Timings Less than 10ms";
     const QString Stars = "Stars";
     const QString Stats = "Stats";
+    const QString StopAllScripts = "Stop All Scripts";
     const QString TestPing = "Test Ping";
     const QString TreeStats = "Calculate Tree Stats";
     const QString TransmitterDrive = "Transmitter Drive";
@@ -269,6 +269,7 @@ namespace MenuOption {
     const QString VoxelAddMode = "Add Voxel Mode";
     const QString VoxelColorMode = "Color Voxel Mode";
     const QString VoxelDeleteMode = "Delete Voxel Mode";
+    const QString VoxelDrumming = "Voxel Drumming";
     const QString VoxelGetColorMode = "Get Color Mode";
     const QString VoxelMode = "Cycle Voxel Mode";
     const QString VoxelPaintColor = "Voxel Paint Color";
diff --git a/interface/src/avatar/Avatar.cpp b/interface/src/avatar/Avatar.cpp
index 5b2a142ac2..f36c03cba6 100644
--- a/interface/src/avatar/Avatar.cpp
+++ b/interface/src/avatar/Avatar.cpp
@@ -162,6 +162,7 @@ void Avatar::render(bool forceRenderHead) {
         // render body
         if (Menu::getInstance()->isOptionChecked(MenuOption::CollisionProxies)) {
             _skeletonModel.renderCollisionProxies(1.f);
+            //_head.getFaceModel().renderCollisionProxies(0.5f);
         }
 
         if (Menu::getInstance()->isOptionChecked(MenuOption::Avatars)) {
@@ -276,11 +277,14 @@ bool Avatar::findSphereCollisions(const glm::vec3& penetratorCenter, float penet
     bool didPenetrate = false;
     glm::vec3 skeletonPenetration;
     ModelCollisionInfo collisionInfo;
+    /* Temporarily disabling collisions against the skeleton because the collision proxies up
+     * near the neck are bad and prevent the hand from hitting the face.
     if (_skeletonModel.findSphereCollision(penetratorCenter, penetratorRadius, collisionInfo, 1.0f, skeletonSkipIndex)) {
         collisionInfo._model = &_skeletonModel;
         collisions.push_back(collisionInfo);
         didPenetrate = true; 
     }
+    */
     if (_head.getFaceModel().findSphereCollision(penetratorCenter, penetratorRadius, collisionInfo)) {
         collisionInfo._model = &(_head.getFaceModel());
         collisions.push_back(collisionInfo);
@@ -445,20 +449,34 @@ float Avatar::getHeight() const {
     return extents.maximum.y - extents.minimum.y;
 }
 
-bool Avatar::isPokeable(ModelCollisionInfo& collision) const {
+bool Avatar::collisionWouldMoveAvatar(ModelCollisionInfo& collision) const {
     // ATM only the Skeleton is pokeable
     // TODO: make poke affect head
+    if (!collision._model) {
+        return false;
+    }
     if (collision._model == &_skeletonModel && collision._jointIndex != -1) {
-        return _skeletonModel.isPokeable(collision);
+        // collision response of skeleton is temporarily disabled
+        return false;
+        //return _skeletonModel.collisionHitsMoveableJoint(collision);
+    }
+    if (collision._model == &(_head.getFaceModel())) {
+        return true;
     }
     return false;
 }
 
-bool Avatar::poke(ModelCollisionInfo& collision) {
-    if (collision._model == &_skeletonModel && collision._jointIndex != -1) {
-        return _skeletonModel.poke(collision);
+void Avatar::applyCollision(ModelCollisionInfo& collision) {
+    if (!collision._model) {
+        return;
     }
-    return false;
+    if (collision._model == &(_head.getFaceModel())) {
+        _head.applyCollision(collision);
+    }
+    // TODO: make skeleton respond to collisions
+    //if (collision._model == &_skeletonModel && collision._jointIndex != -1) {
+    //    _skeletonModel.applyCollision(collision);
+    //}
 }
 
 float Avatar::getPelvisFloatingHeight() const {
diff --git a/interface/src/avatar/Avatar.h b/interface/src/avatar/Avatar.h
index 7e8a1d8f64..2fc26a36b5 100755
--- a/interface/src/avatar/Avatar.h
+++ b/interface/src/avatar/Avatar.h
@@ -129,11 +129,10 @@ public:
     float getHeight() const;
 
     /// \return true if we expect the avatar would move as a result of the collision
-    bool isPokeable(ModelCollisionInfo& collision) const;
+    bool collisionWouldMoveAvatar(ModelCollisionInfo& collision) const;
 
     /// \param collision a data structure for storing info about collisions against Models
-    /// \return true if the collision affects the Avatar models
-    bool poke(ModelCollisionInfo& collision);
+    void applyCollision(ModelCollisionInfo& collision);
 
 public slots:
     void updateCollisionFlags();
diff --git a/interface/src/avatar/Hand.cpp b/interface/src/avatar/Hand.cpp
index 8edb455a75..af66c08bf4 100644
--- a/interface/src/avatar/Hand.cpp
+++ b/interface/src/avatar/Hand.cpp
@@ -57,7 +57,6 @@ void Hand::simulate(float deltaTime, bool isMine) {
     
     if (isMine) {
         _buckyBalls.simulate(deltaTime);
-        updateCollisions();
     }
     
     calculateGeometry();
@@ -126,92 +125,105 @@ void Hand::simulate(float deltaTime, bool isMine) {
     }
 }
 
-void Hand::updateCollisions() {
-    // use position to obtain the left and right palm indices
-    int leftPalmIndex, rightPalmIndex;   
-    getLeftRightPalmIndices(leftPalmIndex, rightPalmIndex);
-    
-    ModelCollisionList collisions;
-    // check for collisions
+void Hand::collideAgainstAvatar(Avatar* avatar, bool isMyHand) {
+    if (!avatar || avatar == _owningAvatar) {
+        // don't collide with our own hands (that is done elsewhere)
+        return;
+    }
+    float scaledPalmRadius = PALM_COLLISION_RADIUS * _owningAvatar->getScale();
     for (size_t i = 0; i < getNumPalms(); i++) {
         PalmData& palm = getPalms()[i];
         if (!palm.isActive()) {
             continue;
         }        
-        float scaledPalmRadius = PALM_COLLISION_RADIUS * _owningAvatar->getScale();
         glm::vec3 totalPenetration;
-        
-        if (Menu::getInstance()->isOptionChecked(MenuOption::CollideWithAvatars)) {
-            // check other avatars
-            foreach (const AvatarSharedPointer& avatarPointer, Application::getInstance()->getAvatarManager().getAvatarHash()) {
-                Avatar* avatar = static_cast<Avatar*>(avatarPointer.data());
-                if (avatar == _owningAvatar) {
-                    // don't collid with our own hands
+        ModelCollisionList collisions;
+        if (isMyHand && Menu::getInstance()->isOptionChecked(MenuOption::PlaySlaps)) {
+            //  Check for palm collisions
+            glm::vec3 myPalmPosition = palm.getPosition();
+            float palmCollisionDistance = 0.1f;
+            bool wasColliding = palm.getIsCollidingWithPalm();
+            palm.setIsCollidingWithPalm(false);
+            //  If 'Play Slaps' is enabled, look for palm-to-palm collisions and make sound
+            for (size_t j = 0; j < avatar->getHand().getNumPalms(); j++) {
+                PalmData& otherPalm = avatar->getHand().getPalms()[j];
+                if (!otherPalm.isActive()) {
                     continue;
                 }
-                if (Menu::getInstance()->isOptionChecked(MenuOption::PlaySlaps)) {
-                    //  Check for palm collisions
-                    glm::vec3 myPalmPosition = palm.getPosition();
-                    float palmCollisionDistance = 0.1f;
-                    bool wasColliding = palm.getIsCollidingWithPalm();
-                    palm.setIsCollidingWithPalm(false);
-                    //  If 'Play Slaps' is enabled, look for palm-to-palm collisions and make sound
-                    for (size_t j = 0; j < avatar->getHand().getNumPalms(); j++) {
-                        PalmData& otherPalm = avatar->getHand().getPalms()[j];
-                        if (!otherPalm.isActive()) {
-                            continue;
-                        }
-                        glm::vec3 otherPalmPosition = otherPalm.getPosition();
-                        if (glm::length(otherPalmPosition - myPalmPosition) < palmCollisionDistance) {
-                            palm.setIsCollidingWithPalm(true);
-                            if (!wasColliding) {
-                                const float PALM_COLLIDE_VOLUME = 1.f;
-                                const float PALM_COLLIDE_FREQUENCY = 1000.f;
-                                const float PALM_COLLIDE_DURATION_MAX = 0.75f;
-                                const float PALM_COLLIDE_DECAY_PER_SAMPLE = 0.01f;
-                                Application::getInstance()->getAudio()->startDrumSound(PALM_COLLIDE_VOLUME,
-                                                                                    PALM_COLLIDE_FREQUENCY,
-                                                                                    PALM_COLLIDE_DURATION_MAX,
-                                                                                    PALM_COLLIDE_DECAY_PER_SAMPLE);
-                                //  If the other person's palm is in motion, move mine downward to show I was hit
-                                const float MIN_VELOCITY_FOR_SLAP = 0.05f;
-                                if (glm::length(otherPalm.getVelocity()) > MIN_VELOCITY_FOR_SLAP) {
-                                    // add slapback here
-                                }
-                            }
-                        }
-                    }
-                }
-                if (avatar->findSphereCollisions(palm.getPosition(), scaledPalmRadius, collisions)) {
-                    for (int j = 0; j < collisions.size(); ++j) {
-                        // we don't resolve penetrations that would poke the other avatar
-                        if (!avatar->isPokeable(collisions[j])) {
-                            totalPenetration = addPenetrations(totalPenetration, collisions[j]._penetration);
+                glm::vec3 otherPalmPosition = otherPalm.getPosition();
+                if (glm::length(otherPalmPosition - myPalmPosition) < palmCollisionDistance) {
+                    palm.setIsCollidingWithPalm(true);
+                    if (!wasColliding) {
+                        const float PALM_COLLIDE_VOLUME = 1.f;
+                        const float PALM_COLLIDE_FREQUENCY = 1000.f;
+                        const float PALM_COLLIDE_DURATION_MAX = 0.75f;
+                        const float PALM_COLLIDE_DECAY_PER_SAMPLE = 0.01f;
+                        Application::getInstance()->getAudio()->startDrumSound(PALM_COLLIDE_VOLUME,
+                                                                            PALM_COLLIDE_FREQUENCY,
+                                                                            PALM_COLLIDE_DURATION_MAX,
+                                                                            PALM_COLLIDE_DECAY_PER_SAMPLE);
+                        //  If the other person's palm is in motion, move mine downward to show I was hit
+                        const float MIN_VELOCITY_FOR_SLAP = 0.05f;
+                        if (glm::length(otherPalm.getVelocity()) > MIN_VELOCITY_FOR_SLAP) {
+                            // add slapback here
                         }
                     }
                 }
             }
         }
-            
-        if (Menu::getInstance()->isOptionChecked(MenuOption::HandsCollideWithSelf)) {
-            // and the current avatar (ignoring everything below the parent of the parent of the last free joint)
-            collisions.clear();
-            const Model& skeletonModel = _owningAvatar->getSkeletonModel();
-            int skipIndex = skeletonModel.getParentJointIndex(skeletonModel.getParentJointIndex(
-                skeletonModel.getLastFreeJointIndex((i == leftPalmIndex) ? skeletonModel.getLeftHandJointIndex() :
-                    (i == rightPalmIndex) ? skeletonModel.getRightHandJointIndex() : -1)));
-            if (_owningAvatar->findSphereCollisions(palm.getPosition(), scaledPalmRadius, collisions, skipIndex)) {
-                for (int j = 0; j < collisions.size(); ++j) {
-                    totalPenetration = addPenetrations(totalPenetration, collisions[j]._penetration);
+        if (avatar->findSphereCollisions(palm.getPosition(), scaledPalmRadius, collisions)) {
+            for (int j = 0; j < collisions.size(); ++j) {
+                if (isMyHand) {
+                    if (!avatar->collisionWouldMoveAvatar(collisions[j])) {
+                        // we resolve the hand from collision when it belongs to MyAvatar AND the other Avatar is 
+                        // not expected to respond to the collision (hand hit unmovable part of their Avatar)
+                        totalPenetration = addPenetrations(totalPenetration, collisions[j]._penetration);
+                    }
+                } else {
+                    // when !isMyHand then avatar is MyAvatar and we apply the collision
+                    // which might not do anything (hand hit unmovable part of MyAvatar) however
+                    // we don't resolve the hand's penetration because we expect the remote 
+                    // simulation to do the right thing.
+                    avatar->applyCollision(collisions[j]);
                 }
             }
         }
-        
-        // un-penetrate
-        palm.addToPosition(-totalPenetration);
+        if (isMyHand) {
+            // resolve penetration
+            palm.addToPosition(-totalPenetration);
+        }
+    }
+}
 
-        // we recycle the collisions container, so we clear it for the next loop
+void Hand::collideAgainstOurself() {
+    if (!Menu::getInstance()->isOptionChecked(MenuOption::HandsCollideWithSelf)) {
+        return;
+    }
+
+    ModelCollisionList collisions;
+    int leftPalmIndex, rightPalmIndex;   
+    getLeftRightPalmIndices(leftPalmIndex, rightPalmIndex);
+    float scaledPalmRadius = PALM_COLLISION_RADIUS * _owningAvatar->getScale();
+    
+    for (size_t i = 0; i < getNumPalms(); i++) {
+        PalmData& palm = getPalms()[i];
+        if (!palm.isActive()) {
+            continue;
+        }        
+        glm::vec3 totalPenetration;
+        // and the current avatar (ignoring everything below the parent of the parent of the last free joint)
         collisions.clear();
+        const Model& skeletonModel = _owningAvatar->getSkeletonModel();
+        int skipIndex = skeletonModel.getParentJointIndex(skeletonModel.getParentJointIndex(
+            skeletonModel.getLastFreeJointIndex((i == leftPalmIndex) ? skeletonModel.getLeftHandJointIndex() :
+                (i == rightPalmIndex) ? skeletonModel.getRightHandJointIndex() : -1)));
+        if (_owningAvatar->findSphereCollisions(palm.getPosition(), scaledPalmRadius, collisions, skipIndex)) {
+            for (int j = 0; j < collisions.size(); ++j) {
+                totalPenetration = addPenetrations(totalPenetration, collisions[j]._penetration);
+            }
+        }
+        // resolve penetration
+        palm.addToPosition(-totalPenetration);
     }
 }
 
@@ -304,7 +316,7 @@ void Hand::render(bool isMine) {
         }
     }
     
-    if (Menu::getInstance()->isOptionChecked(MenuOption::DisplayLeapHands)) {
+    if (Menu::getInstance()->isOptionChecked(MenuOption::DisplayHands)) {
         renderLeapHands(isMine);
     }
 
diff --git a/interface/src/avatar/Hand.h b/interface/src/avatar/Hand.h
index c2f49a15e5..5a423630b4 100755
--- a/interface/src/avatar/Hand.h
+++ b/interface/src/avatar/Hand.h
@@ -58,6 +58,9 @@ public:
     const glm::vec3& getLeapFingerTipBallPosition (int ball) const { return _leapFingerTipBalls [ball].position;}
     const glm::vec3& getLeapFingerRootBallPosition(int ball) const { return _leapFingerRootBalls[ball].position;}
     
+    void collideAgainstAvatar(Avatar* avatar, bool isMyHand);
+    void collideAgainstOurself();
+
 private:
     // disallow copies of the Hand, copy of owning Avatar is disallowed too
     Hand(const Hand&);
@@ -87,7 +90,6 @@ private:
     void renderLeapHands(bool isMine);
     void renderLeapFingerTrails();
     
-    void updateCollisions();
     void calculateGeometry();
     
     void handleVoxelCollision(PalmData* palm, const glm::vec3& fingerTipPosition, VoxelTreeElement* voxel, float deltaTime);
diff --git a/interface/src/avatar/Head.cpp b/interface/src/avatar/Head.cpp
index e5d4724bb5..bb88530aa7 100644
--- a/interface/src/avatar/Head.cpp
+++ b/interface/src/avatar/Head.cpp
@@ -219,6 +219,34 @@ float Head::getTweakedRoll() const {
     return glm::clamp(_roll + _tweakedRoll, MIN_HEAD_ROLL, MAX_HEAD_ROLL);
 }
 
+void Head::applyCollision(ModelCollisionInfo& collisionInfo) {
+    // HACK: the collision proxies for the FaceModel are bad.  As a temporary workaround
+    // we collide against a hard coded collision proxy.
+    // TODO: get a better collision proxy here.
+    const float HEAD_RADIUS = 0.15f;
+    const glm::vec3 HEAD_CENTER = _position;
+
+    // collide the contactPoint against the collision proxy to obtain a new penetration
+    // NOTE: that penetration is in opposite direction (points the way out for the point, not the sphere)
+    glm::vec3 penetration;
+    if (findPointSpherePenetration(collisionInfo._contactPoint, HEAD_CENTER, HEAD_RADIUS, penetration)) {
+        // compute lean angles
+        Avatar* owningAvatar = static_cast<Avatar*>(_owningAvatar);
+        glm::quat bodyRotation = owningAvatar->getOrientation();
+        glm::vec3 neckPosition;
+        if (owningAvatar->getSkeletonModel().getNeckPosition(neckPosition)) {
+            glm::vec3 xAxis = bodyRotation * glm::vec3(1.f, 0.f, 0.f);
+            glm::vec3 zAxis = bodyRotation * glm::vec3(0.f, 0.f, 1.f);
+            float neckLength = glm::length(_position - neckPosition);
+            if (neckLength > 0.f) {
+                float forward = glm::dot(collisionInfo._penetration, zAxis) / neckLength;
+                float sideways = - glm::dot(collisionInfo._penetration, xAxis) / neckLength;
+                addLean(sideways, forward);
+            }
+        }
+    } 
+}
+
 void Head::renderLookatVectors(glm::vec3 leftEyePosition, glm::vec3 rightEyePosition, glm::vec3 lookatPosition) {
 
     Application::getInstance()->getGlowEffect()->begin();
diff --git a/interface/src/avatar/Head.h b/interface/src/avatar/Head.h
index 19f9efd8e6..eae8223903 100644
--- a/interface/src/avatar/Head.h
+++ b/interface/src/avatar/Head.h
@@ -79,6 +79,8 @@ public:
     float getTweakedPitch() const;
     float getTweakedYaw() const;
     float getTweakedRoll() const;
+
+    void  applyCollision(ModelCollisionInfo& collisionInfo);
     
 private:
     // disallow copies of the Head, copy of owning Avatar is disallowed too
diff --git a/interface/src/avatar/MyAvatar.cpp b/interface/src/avatar/MyAvatar.cpp
index 0e2625bf0f..85c0c2b35a 100644
--- a/interface/src/avatar/MyAvatar.cpp
+++ b/interface/src/avatar/MyAvatar.cpp
@@ -112,23 +112,7 @@ void MyAvatar::updateTransmitter(float deltaTime) {
 void MyAvatar::update(float deltaTime) {
     updateTransmitter(deltaTime);
 
-    // TODO: resurrect touch interactions between avatars
-    //// rotate body yaw for yaw received from multitouch
-    //setOrientation(getOrientation() * glm::quat(glm::vec3(0, _yawFromTouch, 0)));
-    //_yawFromTouch = 0.f;
-    //
-    //// apply pitch from touch
-    //_head.setPitch(_head.getPitch() + _pitchFromTouch);
-    //_pitchFromTouch = 0.0f;
-    //
-    //float TOUCH_YAW_SCALE = -0.25f;
-    //float TOUCH_PITCH_SCALE = -12.5f;
-    //float FIXED_TOUCH_TIMESTEP = 0.016f;
-    //_yawFromTouch += ((_touchAvgX - _lastTouchAvgX) * TOUCH_YAW_SCALE * FIXED_TOUCH_TIMESTEP);
-    //_pitchFromTouch += ((_touchAvgY - _lastTouchAvgY) * TOUCH_PITCH_SCALE * FIXED_TOUCH_TIMESTEP);
-
-    // Update my avatar's state from gyros
-    updateFromGyros(Menu::getInstance()->isOptionChecked(MenuOption::TurnWithHead));
+    updateFromGyros(deltaTime);
 
     // Update head mouse from faceshift if active
     Faceshift* faceshift = Application::getInstance()->getFaceshift();
@@ -329,6 +313,7 @@ void MyAvatar::simulate(float deltaTime) {
     _position += _velocity * deltaTime;
 
     // update avatar skeleton and simulate hand and head
+    _hand.collideAgainstOurself(); 
     _hand.simulate(deltaTime, true);
     _skeletonModel.simulate(deltaTime);
     _head.setBodyRotation(glm::vec3(_bodyPitch, _bodyYaw, _bodyRoll));
@@ -348,7 +333,7 @@ void MyAvatar::simulate(float deltaTime) {
 const float MAX_PITCH = 90.0f;
 
 //  Update avatar head rotation with sensor data
-void MyAvatar::updateFromGyros(bool turnWithHead) {
+void MyAvatar::updateFromGyros(float deltaTime) {
     Faceshift* faceshift = Application::getInstance()->getFaceshift();
     glm::vec3 estimatedPosition, estimatedRotation;
 
@@ -356,7 +341,7 @@ void MyAvatar::updateFromGyros(bool turnWithHead) {
         estimatedPosition = faceshift->getHeadTranslation();
         estimatedRotation = safeEulerAngles(faceshift->getHeadRotation());
         //  Rotate the body if the head is turned beyond the screen
-        if (turnWithHead) {
+        if (Menu::getInstance()->isOptionChecked(MenuOption::TurnWithHead)) {
             const float FACESHIFT_YAW_TURN_SENSITIVITY = 0.5f;
             const float FACESHIFT_MIN_YAW_TURN = 15.f;
             const float FACESHIFT_MAX_YAW_TURN = 50.f;
@@ -371,11 +356,12 @@ void MyAvatar::updateFromGyros(bool turnWithHead) {
         }
     } else {
         // restore rotation, lean to neutral positions
-        const float RESTORE_RATE = 0.05f;
-        _head.setYaw(glm::mix(_head.getYaw(), 0.0f, RESTORE_RATE));
-        _head.setRoll(glm::mix(_head.getRoll(), 0.0f, RESTORE_RATE));
-        _head.setLeanSideways(glm::mix(_head.getLeanSideways(), 0.0f, RESTORE_RATE));
-        _head.setLeanForward(glm::mix(_head.getLeanForward(), 0.0f, RESTORE_RATE));
+        const float RESTORE_PERIOD = 1.f;   // seconds
+        float restorePercentage = glm::clamp(deltaTime/RESTORE_PERIOD, 0.f, 1.f);
+        _head.setYaw(glm::mix(_head.getYaw(), 0.0f, restorePercentage));
+        _head.setRoll(glm::mix(_head.getRoll(), 0.0f, restorePercentage));
+        _head.setLeanSideways(glm::mix(_head.getLeanSideways(), 0.0f, restorePercentage));
+        _head.setLeanForward(glm::mix(_head.getLeanForward(), 0.0f, restorePercentage));
         return;
     }
 
@@ -854,7 +840,6 @@ void MyAvatar::updateCollisionWithEnvironment(float deltaTime, float radius) {
     }
 }
 
-
 void MyAvatar::updateCollisionWithVoxels(float deltaTime, float radius) {
     const float VOXEL_ELASTICITY = 0.4f;
     const float VOXEL_DAMPING = 0.0f;
@@ -1002,8 +987,13 @@ void MyAvatar::updateCollisionWithAvatars(float deltaTime) {
                 avatar->getPosition(), theirCapsuleRadius, theirCapsuleHeight, penetration)) {
                 // move the avatar out by half the penetration
                 setPosition(_position - 0.5f * penetration);
-                glm::vec3 pushOut = 0.5f * penetration;
             }
+
+            // collide our hands against them
+            _hand.collideAgainstAvatar(avatar, true);
+
+            // collide their hands against us
+            avatar->getHand().collideAgainstAvatar(this, false);
         }
     }
 }
diff --git a/interface/src/avatar/MyAvatar.h b/interface/src/avatar/MyAvatar.h
index 8f4f96ffcf..d8cb4c05aa 100644
--- a/interface/src/avatar/MyAvatar.h
+++ b/interface/src/avatar/MyAvatar.h
@@ -34,7 +34,7 @@ public:
     void reset();
     void update(float deltaTime);
     void simulate(float deltaTime);
-    void updateFromGyros(bool turnWithHead);
+    void updateFromGyros(float deltaTime);
     void updateTransmitter(float deltaTime);
 
     void render(bool forceRenderHead);
diff --git a/interface/src/avatar/SkeletonModel.cpp b/interface/src/avatar/SkeletonModel.cpp
index ac08c52b49..ff4de8c41e 100644
--- a/interface/src/avatar/SkeletonModel.cpp
+++ b/interface/src/avatar/SkeletonModel.cpp
@@ -36,23 +36,24 @@ void SkeletonModel::simulate(float deltaTime) {
     HandData& hand = _owningAvatar->getHand();
     hand.getLeftRightPalmIndices(leftPalmIndex, rightPalmIndex);
 
-    const float HAND_RESTORATION_RATE = 0.25f;
+    const float HAND_RESTORATION_PERIOD = 1.f;  // seconds
+    float handRestorePercent = glm::clamp(deltaTime / HAND_RESTORATION_PERIOD, 0.f, 1.f);
 
     const FBXGeometry& geometry = _geometry->getFBXGeometry();
     if (leftPalmIndex == -1) {
         // no Leap data; set hands from mouse
         if (_owningAvatar->getHandState() == HAND_STATE_NULL) {
-            restoreRightHandPosition(HAND_RESTORATION_RATE);
+            restoreRightHandPosition(handRestorePercent);
         } else {
             applyHandPosition(geometry.rightHandJointIndex, _owningAvatar->getHandPosition());
         }
-        restoreLeftHandPosition(HAND_RESTORATION_RATE);
+        restoreLeftHandPosition(handRestorePercent);
 
     } else if (leftPalmIndex == rightPalmIndex) {
         // right hand only
         applyPalmData(geometry.rightHandJointIndex, geometry.rightFingerJointIndices, geometry.rightFingertipJointIndices,
             hand.getPalms()[leftPalmIndex]);
-        restoreLeftHandPosition(HAND_RESTORATION_RATE);
+        restoreLeftHandPosition(handRestorePercent);
 
     } else {
         applyPalmData(geometry.leftHandJointIndex, geometry.leftFingerJointIndices, geometry.leftFingertipJointIndices,
diff --git a/interface/src/renderer/Model.cpp b/interface/src/renderer/Model.cpp
index cce4382dbe..7686b1ac7f 100644
--- a/interface/src/renderer/Model.cpp
+++ b/interface/src/renderer/Model.cpp
@@ -477,7 +477,10 @@ bool Model::findSphereCollision(const glm::vec3& penetratorCenter, float penetra
         if (findSphereCapsuleConePenetration(relativeCenter, penetratorRadius, start, end,
                 startRadius, endRadius, bonePenetration)) {
             totalPenetration = addPenetrations(totalPenetration, bonePenetration);
-            // TODO: Andrew to try to keep the joint furthest toward the root
+            // BUG: we currently overwrite the jointIndex with the last one found
+            // which can cause incorrect collisions when colliding against more than
+            // one joint.
+            // TODO: fix this.
             jointIndex = i;
         }
         outerContinue: ;
@@ -722,7 +725,7 @@ void Model::renderCollisionProxies(float alpha) {
     glPopMatrix();
 }
 
-bool Model::isPokeable(ModelCollisionInfo& collision) const {
+bool Model::collisionHitsMoveableJoint(ModelCollisionInfo& collision) const {
     // the joint is pokable by a collision if it exists and is free to move
     const FBXJoint& joint = _geometry->getFBXGeometry().joints[collision._jointIndex];
     if (joint.parentIndex == -1 || _jointStates.isEmpty()) {
@@ -734,7 +737,7 @@ bool Model::isPokeable(ModelCollisionInfo& collision) const {
     return !freeLineage.isEmpty();
 }
 
-bool Model::poke(ModelCollisionInfo& collision) {
+void Model::applyCollision(ModelCollisionInfo& collision) {
     // This needs work.  At the moment it can wiggle joints that are free to move (such as arms)
     // but unmovable joints (such as torso) cannot be influenced at all.
     glm::vec3 jointPosition(0.f);
@@ -758,11 +761,10 @@ bool Model::poke(ModelCollisionInfo& collision) {
                 getJointPosition(jointIndex, end);
                 glm::vec3 newEnd = start + glm::angleAxis(glm::degrees(angle), axis) * (end - start);
                 // try to move it
-                return setJointPosition(jointIndex, newEnd, -1, true);
+                setJointPosition(jointIndex, newEnd, -1, true);
             }
         }
     }
-    return false;
 }
 
 void Model::deleteGeometry() {
diff --git a/interface/src/renderer/Model.h b/interface/src/renderer/Model.h
index 003cdfe3e5..bab25bed7a 100644
--- a/interface/src/renderer/Model.h
+++ b/interface/src/renderer/Model.h
@@ -167,12 +167,12 @@ public:
     
     void renderCollisionProxies(float alpha);
 
-    /// \return true if the collision would move the model
-    bool isPokeable(ModelCollisionInfo& collision) const;
+    /// \return true if the collision is against a moveable joint
+    bool collisionHitsMoveableJoint(ModelCollisionInfo& collision) const;
 
     /// \param collisionInfo info about the collision
-    /// \return true if collision affects the Model
-    bool poke(ModelCollisionInfo& collisionInfo);
+    /// Use the collisionInfo to affect the model
+    void  applyCollision(ModelCollisionInfo& collisionInfo);
 
 protected:
 
diff --git a/libraries/avatars/src/AvatarHashMap.cpp b/libraries/avatars/src/AvatarHashMap.cpp
index 72ada7d421..82485691c5 100644
--- a/libraries/avatars/src/AvatarHashMap.cpp
+++ b/libraries/avatars/src/AvatarHashMap.cpp
@@ -2,7 +2,7 @@
 //  AvatarHashMap.cpp
 //  hifi
 //
-//  Created by Stephen AndrewMeadows on 1/28/2014.
+//  Created by AndrewMeadows on 1/28/2014.
 //  Copyright (c) 2014 HighFidelity, Inc. All rights reserved.
 //
 
diff --git a/libraries/avatars/src/HeadData.cpp b/libraries/avatars/src/HeadData.cpp
index f863d6b592..62e8276bd3 100644
--- a/libraries/avatars/src/HeadData.cpp
+++ b/libraries/avatars/src/HeadData.cpp
@@ -45,10 +45,3 @@ void HeadData::addLean(float sideways, float forwards) {
     _leanForward  += forwards;
 }
 
-bool HeadData::findSpherePenetration(const glm::vec3& penetratorCenter, float penetratorRadius, glm::vec3& penetration) const {
-    // we would like to update this to determine collisions/penetrations with the Avatar's head sphere...
-    // but right now it does not appear as if the HeadData has a position and radius.
-    // this is a placeholder for now.
-    return false;
-}
-
diff --git a/libraries/avatars/src/HeadData.h b/libraries/avatars/src/HeadData.h
index fde684bbf1..0f096059c0 100644
--- a/libraries/avatars/src/HeadData.h
+++ b/libraries/avatars/src/HeadData.h
@@ -58,13 +58,6 @@ public:
     void setLookAtPosition(const glm::vec3& lookAtPosition) { _lookAtPosition = lookAtPosition; }
     
     friend class AvatarData;
-
-    /// Checks for penetration between the described sphere and the hand.
-    /// \param penetratorCenter the center of the penetration test sphere
-    /// \param penetratorRadius the radius of the penetration test sphere
-    /// \param penetration[out] the vector in which to store the penetration
-    /// \return whether or not the sphere penetrated
-    bool findSpherePenetration(const glm::vec3& penetratorCenter, float penetratorRadius, glm::vec3& penetration) const;
     
 protected:
     float _yaw;
diff --git a/libraries/octree/src/OctreeScriptingInterface.cpp b/libraries/octree/src/OctreeScriptingInterface.cpp
index 553ab961df..89bf5ceb62 100644
--- a/libraries/octree/src/OctreeScriptingInterface.cpp
+++ b/libraries/octree/src/OctreeScriptingInterface.cpp
@@ -11,13 +11,19 @@
 #include "OctreeScriptingInterface.h"
 
 OctreeScriptingInterface::OctreeScriptingInterface(OctreeEditPacketSender* packetSender, 
-                JurisdictionListener* jurisdictionListener)
+                JurisdictionListener* jurisdictionListener) :
+    _packetSender(NULL),
+    _jurisdictionListener(NULL),
+    _managedPacketSender(false), 
+    _managedJurisdictionListener(false),
+    _initialized(false)
 {
     setPacketSender(packetSender);
     setJurisdictionListener(jurisdictionListener);
 }
 
 OctreeScriptingInterface::~OctreeScriptingInterface() {
+qDebug() << "OctreeScriptingInterface::~OctreeScriptingInterface() this=" << this;
     cleanupManagedObjects();
 }
 
@@ -45,6 +51,9 @@ void OctreeScriptingInterface::setJurisdictionListener(JurisdictionListener* jur
 }
 
 void OctreeScriptingInterface::init() {
+    if (_initialized) {
+        return;
+    }
     if (_jurisdictionListener) {
         _managedJurisdictionListener = false;
     } else {
@@ -64,5 +73,5 @@ void OctreeScriptingInterface::init() {
     if (QCoreApplication::instance()) {
         connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()), this, SLOT(cleanupManagedObjects()));
     }
-
+    _initialized = true;
 }
diff --git a/libraries/octree/src/OctreeScriptingInterface.h b/libraries/octree/src/OctreeScriptingInterface.h
index 34eddd8bed..3c832cbae8 100644
--- a/libraries/octree/src/OctreeScriptingInterface.h
+++ b/libraries/octree/src/OctreeScriptingInterface.h
@@ -93,6 +93,7 @@ protected:
     JurisdictionListener* _jurisdictionListener;
     bool _managedPacketSender;
     bool _managedJurisdictionListener;
+    bool _initialized;
 };
 
 #endif /* defined(__hifi__OctreeScriptingInterface__) */
diff --git a/libraries/script-engine/src/Vec3.cpp b/libraries/script-engine/src/Vec3.cpp
index 2d6a5b2316..1ed3ae6915 100644
--- a/libraries/script-engine/src/Vec3.cpp
+++ b/libraries/script-engine/src/Vec3.cpp
@@ -26,7 +26,9 @@ glm::vec3 Vec3::multiplyQbyV(const glm::quat& q, const glm::vec3& v) {
 glm::vec3 Vec3::sum(const glm::vec3& v1, const glm::vec3& v2) {
     return v1 + v2;
 }
-
+glm::vec3 Vec3::subtract(const glm::vec3& v1, const glm::vec3& v2) {
+        return v1 - v2;
+}
 float Vec3::length(const glm::vec3& v) {
     return glm::length(v);
 }
diff --git a/libraries/script-engine/src/Vec3.h b/libraries/script-engine/src/Vec3.h
index bf883f3e5a..20ad3f7eaa 100644
--- a/libraries/script-engine/src/Vec3.h
+++ b/libraries/script-engine/src/Vec3.h
@@ -25,6 +25,7 @@ public slots:
     glm::vec3 multiply(const glm::vec3& v1, float f);
     glm::vec3 multiplyQbyV(const glm::quat& q, const glm::vec3& v);
     glm::vec3 sum(const glm::vec3& v1, const glm::vec3& v2);
+    glm::vec3 subtract(const glm::vec3& v1, const glm::vec3& v2);
     float length(const glm::vec3& v);
 };