--- a/DataSetBuilder.st	Sun May 01 23:15:08 2016 +0200
+++ b/DataSetBuilder.st	Sun May 01 23:15:35 2016 +0200
@@ -4436,10 +4436,10 @@
 !DataSetBuilder::Row methodsFor:'message handling'!
 
 doesNotUnderstand:aMessage
-    "does not understand message; delegate to column view
-    "
+    "does not understand message; ignore"
+
+    ('[DataSetBuilder::Row] warning: message completely ignored: ',aMessage selector) errorPrintCR.
     ^ nil
-
 ! !
 
 !DataSetBuilder class methodsFor:'documentation'!