John Banner played Oberfeldwebel (Master Sergeant) Hans Georg Schultz on Hogan’s Heroes.  His character was described as a good hearted man even though he was a Nazi The only reason he was kind-hearted was his steesh.  Whenever he would catch Hogan and his men planning their escape his first instinct was to report them to Klink, but his steesh would whisper in his ear to let them go.  This resulted in what was the shows most famous catch-phrase “I know nothing!” (variations include “I hear nothing”, “I see nothing”, and “I steesh everything.”).