Doonesbury by Garry Trudeau for August 10, 1973
Mark: Campers, you've just been listening to yet another WBBY exclusive - Zonker Harris, the busted bopper, rappin' on grass! Say, Busted Bopper, you got any last words to tell the folks on what you learned 'bout grass. Zonker: It may or may not be wrong, but it sure IS against the law! Mark: Amen!