Doonesbury by Garry Trudeau for June 14, 1973
Transcript:
Zonker: Sure you want to make the drive all the way out to the coast, Mike? Mike: Oh, yeah. I think it'd be fun. Also, I'd like to see your folks again. Zonker: Hey, Ma? Remember my friend, Michael Doonesbury? Is it okay if he comes out for a visit? What? Why not? Aw, c'mon, Ma, he is not... no, really. You just gotta get to know him... Ma! What an awful thing to say. Listen, Ma! He's changed a lot since then! Mike: Forget it.
Hard for a leopard to change his spots.