It's debatable how harmless he was to begin with, though - we are talking about the guy who once got his mouth sewn shut because he had to fast-talk his way out of getting his head cut off. Screwy's most recent atrocity occurred on April 1, 1997, when, in an attempt to get April Fool's Day declared a national holiday, he barricaded himself in the control room of Cartoon Network and ran his second cartoon, Happy Go Nutty (1944), over and over, for twelve solid hours.