diff --git a/src/game/GameObject.cpp b/src/game/GameObject.cpp
index 286c9731692..11fcd32ee36 100644
--- a/src/game/GameObject.cpp
+++ b/src/game/GameObject.cpp
@@ -942,6 +942,9 @@ void GameObject::SwitchDoorOrButton(bool activate, bool alternative /* = false *
 
 void GameObject::Use(Unit* user)
 {
+    // user must be provided
+    MANGOS_ASSERT(user || PrintEntryError("GameObject::Use (without user)"));
+
     // by default spell caster is user
     Unit* spellCaster = user;
     uint32 spellId = 0;
diff --git a/src/game/Map.cpp b/src/game/Map.cpp
index d6c5ac878e2..0b6cedfd476 100644
--- a/src/game/Map.cpp
+++ b/src/game/Map.cpp
@@ -3214,11 +3214,9 @@ uint32 Map::GenerateLocalLowGuid(HighGuid guidhigh)
         case HIGHGUID_VEHICLE:
             return m_VehicleGuids.Generate();
         default:
-            MANGOS_ASSERT(0);
+            MANGOS_ASSERT(false);
+            return 0;
     }
-
-    MANGOS_ASSERT(0);
-    return 0;
 }
 
 /**
diff --git a/src/game/Object.cpp b/src/game/Object.cpp
index b40c0e2facc..ea5cd2b9126 100644
--- a/src/game/Object.cpp
+++ b/src/game/Object.cpp
@@ -883,6 +883,15 @@ bool Object::PrintIndexError(uint32 index, bool set) const
     return false;
 }
 
+bool Object::PrintEntryError(char const* descr) const
+{
+    sLog.outError("Object Type %u, Entry %u (lowguid %u) with invalid call for %s", GetTypeId(), GetEntry(), GetObjectGuid().GetCounter(), descr);
+
+    // always false for continue assert fail
+    return false;
+}
+
+
 void Object::BuildUpdateDataForPlayer(Player* pl, UpdateDataMapType& update_players)
 {
     UpdateDataMapType::iterator iter = update_players.find(pl);
@@ -1190,7 +1199,7 @@ float WorldObject::GetAngle(const WorldObject* obj) const
     if (!obj)
         return 0.0f;
 
-    MANGOS_ASSERT(obj != this);
+    MANGOS_ASSERT(obj != this || PrintEntryError("GetAngle (for self)"));
 
     return GetAngle(obj->GetPositionX(), obj->GetPositionY());
 }
diff --git a/src/game/Object.h b/src/game/Object.h
index 98e0738aff5..9e3ac08923c 100644
--- a/src/game/Object.h
+++ b/src/game/Object.h
@@ -359,7 +359,6 @@ class MANGOS_DLL_SPEC Object
         virtual bool HasInvolvedQuest(uint32 /* quest_id */) const { return false; }
 
     protected:
-
         Object ( );
 
         void _InitValues();
@@ -396,10 +395,13 @@ class MANGOS_DLL_SPEC Object
 
         PackedGuid m_PackGUID;
 
-        // for output helpfull error messages from ASSERTs
-        bool PrintIndexError(uint32 index, bool set) const;
         Object(const Object&);                              // prevent generation copy constructor
         Object& operator=(Object const&);                   // prevent generation assigment operator
+
+    public:
+        // for output helpfull error messages from ASSERTs
+        bool PrintIndexError(uint32 index, bool set) const;
+        bool PrintEntryError(char const* descr) const;
 };
 
 struct WorldObjectChangeAccumulator;
diff --git a/src/game/PathFinder.cpp b/src/game/PathFinder.cpp
index 673c00622e4..1c0b5441476 100644
--- a/src/game/PathFinder.cpp
+++ b/src/game/PathFinder.cpp
@@ -259,8 +259,8 @@ void PathFinder::BuildPolyPath(const Vector3 &startPos, const Vector3 &endPos)
     {
         for (pathStartIndex = 0; pathStartIndex < m_polyLength; ++pathStartIndex)
         {
-            // here to carch few bugs
-            MANGOS_ASSERT(m_pathPolyRefs[pathStartIndex] != INVALID_POLYREF);
+            // here to catch few bugs
+            MANGOS_ASSERT(m_pathPolyRefs[pathStartIndex] != INVALID_POLYREF || m_sourceUnit->PrintEntryError("PathFinder::BuildPolyPath"));
 
             if (m_pathPolyRefs[pathStartIndex] == startPoly)
             {
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index 547bccd4a44..99aac5c92ac 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "11921"
+ #define REVISION_NR "11922"
 #endif // __REVISION_NR_H__