diff --git a/Sources/Engine/Brushes/BrushPolygon.cpp b/Sources/Engine/Brushes/BrushPolygon.cpp
index b5a4342..e5b971b 100644
--- a/Sources/Engine/Brushes/BrushPolygon.cpp
+++ b/Sources/Engine/Brushes/BrushPolygon.cpp
@@ -509,7 +509,7 @@ CBrushPolygon &CBrushPolygon::CopyPolygon(CBrushPolygon &bp)
   bpo_boxBoundingBox=bp.bpo_boxBoundingBox;
   bpo_pbscSector=bp.bpo_pbscSector;
   bpo_rsOtherSideSectors.Clear();
-  //bpo_lhShadingInfos; // FIXME: DG: was this missing "= bp.bpo_lhShadingInfos" or something like that?
+  //bpo_lhShadingInfos; // don't copy or anything, it's a CListHead which must not be copied
   bpo_iInWorld=bp.bpo_iInWorld;
   return *this;
 }
diff --git a/Sources/Entities/Fish.es b/Sources/Entities/Fish.es
index 93d3eb5..4a969a5 100644
--- a/Sources/Entities/Fish.es
+++ b/Sources/Entities/Fish.es
@@ -268,7 +268,7 @@ procedures:
     // declare yourself as a model
     InitAsModel();
     // fish must not go upstairs, or it will get out of water
-    SetPhysicsFlags((EPF_MODEL_WALKING|EPF_HASGILLS)&~EPF_ONBLOCK_CLIMBORSLIDE|EPF_ONBLOCK_SLIDE);
+    SetPhysicsFlags(((EPF_MODEL_WALKING|EPF_HASGILLS)&~EPF_ONBLOCK_CLIMBORSLIDE)|EPF_ONBLOCK_SLIDE);
     SetCollisionFlags(ECF_MODEL);
     SetFlags(GetFlags()|ENF_ALIVE);
     SetHealth(30.0f);
diff --git a/Sources/EntitiesMP/Fish.es b/Sources/EntitiesMP/Fish.es
index 9d3e60a..52a8abe 100755
--- a/Sources/EntitiesMP/Fish.es
+++ b/Sources/EntitiesMP/Fish.es
@@ -283,10 +283,7 @@ procedures:
     // declare yourself as a model
     InitAsModel();
     // fish must not go upstairs, or it will get out of water
-    // FIXME: DG: should it really be
-    //          (EPF_MODEL_WALKING|EPF_HASGILLS) & ~EPF_ONBLOCK_CLIMBORSLIDE ) | EPF_ONBLOCK_SLIDE
-    //         or rather (EPF_MODEL_WALKING|EPF_HASGILLS) & ~(EPF_ONBLOCK_CLIMBORSLIDE|EPF_ONBLOCK_SLIDE) ??
-    SetPhysicsFlags((EPF_MODEL_WALKING|EPF_HASGILLS)&~EPF_ONBLOCK_CLIMBORSLIDE|EPF_ONBLOCK_SLIDE);
+    SetPhysicsFlags(((EPF_MODEL_WALKING|EPF_HASGILLS)&~EPF_ONBLOCK_CLIMBORSLIDE)|EPF_ONBLOCK_SLIDE);
     SetCollisionFlags(ECF_MODEL);
     SetFlags(GetFlags()|ENF_ALIVE);
     SetHealth(30.0f);