Doonesbury by Garry Trudeau for April 21, 1972
Mark: 'Morning, Michael. Mike: Ah, good morning. Mark: Not so fast, shorty. I'm next. Bernie: Just relax. Seen my soap! I can't wash without soap. Mike: Hey, here it is! People: Hi, folks! Hey, gimme my towel back! Your towel? Anyone seen my ultra bright? Hurry up, willya? Mike: Why are you all up at six? People: To avoid the line at the bathroom.