diff --git a/libraries/entities/src/EntityItem.cpp b/libraries/entities/src/EntityItem.cpp
index 91aef39eea..3315cdd2e7 100644
--- a/libraries/entities/src/EntityItem.cpp
+++ b/libraries/entities/src/EntityItem.cpp
@@ -21,6 +21,9 @@
 #include "EntityItem.h"
 #include "EntityTree.h"
 
+quint64 EntityItem::lastCollisionTime = 0;
+
+
 void EntityItem::initFromEntityItemID(const EntityItemID& entityItemID) {
     _id = entityItemID.id;
     _creatorTokenID = entityItemID.creatorTokenID;
diff --git a/libraries/entities/src/EntityItem.h b/libraries/entities/src/EntityItem.h
index df619e2f69..ad540d1df9 100644
--- a/libraries/entities/src/EntityItem.h
+++ b/libraries/entities/src/EntityItem.h
@@ -42,7 +42,6 @@ class EntityTreeElementExtraEncodeData;
 /// one directly, instead you must only construct one of it's derived classes with additional features.
 class EntityItem  {
     friend class EntityTreeElement;
-
 public:
     enum EntityDirtyFlags {
         DIRTY_POSITION = 0x0001,
@@ -55,6 +54,8 @@ public:
         DIRTY_UPDATEABLE = 0x0080,
     };
 
+    static quint64 lastCollisionTime;
+
     DONT_ALLOW_INSTANTIATION // This class can not be instantiated directly
     
     EntityItem(const EntityItemID& entityItemID);
diff --git a/libraries/physics/src/EntityMotionState.cpp b/libraries/physics/src/EntityMotionState.cpp
index a6a358faa0..02d7b77606 100644
--- a/libraries/physics/src/EntityMotionState.cpp
+++ b/libraries/physics/src/EntityMotionState.cpp
@@ -99,6 +99,13 @@ void EntityMotionState::setWorldTransform(const btTransform& worldTrans) {
 
     _outgoingPacketFlags = DIRTY_PHYSICS_FLAGS;
     EntityMotionState::enqueueOutgoingEntity(_entity);
+    
+    quint64 now = usecTimestampNow();
+    qDebug() << "EntityMotionState::setWorldTransform()... changed entity:" << _entity->getEntityItemID();
+    qDebug() << "       last edited:" << _entity->getLastEdited() << formatUsecTime(now - _entity->getLastEdited()) << "ago";
+    qDebug() << "    last simulated:" << _entity->getLastSimulated() << formatUsecTime(now - _entity->getLastSimulated()) << "ago";
+    qDebug() << "      last updated:" << _entity->getLastUpdated() << formatUsecTime(now - _entity->getLastUpdated()) << "ago";
+    qDebug() << "    last collision:" << EntityItem::lastCollisionTime << formatUsecTime(now - EntityItem::lastCollisionTime) << "ago";
 }
 
 void EntityMotionState::updateObjectEasy(uint32_t flags, uint32_t frame) {
diff --git a/libraries/physics/src/PhysicsEngine.cpp b/libraries/physics/src/PhysicsEngine.cpp
index dfd28dd8a4..fce8faf301 100644
--- a/libraries/physics/src/PhysicsEngine.cpp
+++ b/libraries/physics/src/PhysicsEngine.cpp
@@ -371,10 +371,18 @@ void PhysicsEngine::computeCollisionEvents() {
             if (B && B->getType() == MOTION_STATE_TYPE_ENTITY) {
                 idB = static_cast<EntityMotionState*>(B)->getEntity()->getEntityItemID();
             }
+
+qDebug() << "entityCollisionWithEntity()... idA:" << idA << "idB:" << idB << "*******************************";
+EntityItem::lastCollisionTime = usecTimestampNow();
+
             emit entityCollisionWithEntity(idA, idB, contactItr->second);
         } else if (B && B->getType() == MOTION_STATE_TYPE_ENTITY) {
             EntityItemID idA;
             EntityItemID idB = static_cast<EntityMotionState*>(B)->getEntity()->getEntityItemID();
+
+qDebug() << "entityCollisionWithEntity()... idA:" << idA << "idB:" << idB << "*******************************";
+EntityItem::lastCollisionTime = usecTimestampNow();
+
             emit entityCollisionWithEntity(idA, idB, contactItr->second);
         }