Like in this question -
http://answers.yahoo.com/question/index;_ylt=AqedbkY3n.FjLhueCW2DQd7sy6IX;_ylv=3?qid=20090223181839AA63ijt
Hitler and the Nazis were racist, sick in the head and cruel, but that doesn't mean people who joke about them are.
I'm not sure if this is the right category.