diff --git a/arrangements/code/fast_trimesh.cpp b/arrangements/code/fast_trimesh.cpp
index 8b4d80bf..c58953f7 100644
--- a/arrangements/code/fast_trimesh.cpp
+++ b/arrangements/code/fast_trimesh.cpp
@@ -553,6 +553,9 @@ inline int FastTrimesh::triOrientation(uint t_id) const
         case YZ: return genericPoint::orient2Dyz(*triVert(t_id, 0), *triVert(t_id, 1), *triVert(t_id, 2));
         case ZX: return genericPoint::orient2Dzx(*triVert(t_id, 0), *triVert(t_id, 1), *triVert(t_id, 2));
     }
+
+    assert(false && "This should not happen");
+    return 0; // warning killer
 }
 
 //:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
diff --git a/arrangements/code/intersection_classification.cpp b/arrangements/code/intersection_classification.cpp
index 688ff412..75cd6374 100644
--- a/arrangements/code/intersection_classification.cpp
+++ b/arrangements/code/intersection_classification.cpp
@@ -934,6 +934,8 @@ inline bool genericPointInsideTriangle(const TriangleSoup &ts, uint p_id, uint t
         }
     }
 
+    assert(false && "This should not happen");
+    return false; // warning killer
 }
 
 
diff --git a/arrangements/code/triangulation.cpp b/arrangements/code/triangulation.cpp
index 6bca4bae..f1674ece 100644
--- a/arrangements/code/triangulation.cpp
+++ b/arrangements/code/triangulation.cpp
@@ -953,6 +953,9 @@ inline bool fastPointOnLine(const FastTrimesh &subm, uint e_id, uint p_id)
         case YZ: return (genericPoint::orient2Dyz(*subm.vert(ev0_id), *subm.vert(ev1_id), *subm.vert(p_id)) == 0);
         case ZX: return (genericPoint::orient2Dzx(*subm.vert(ev0_id), *subm.vert(ev1_id), *subm.vert(p_id)) == 0);
     }
+
+    assert(false && "This should not happen");
+    return false; // Warning killer
 }
 
 //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::