504 posted:

Schultz was in a death camp for realz, got tattooed and everything. Part of his agreement to take the role in HH was that the Germans could never "win" an episode (even for comedy purposes) and his character had to be shown expressing he believed Hitler was crazy, most commonly shown by the running joke where prisoners would all say something about Hitlers insanity, then all turn to Schultz who would let out a whistle while twirling his finger around his ear.