Doonesbury by Garry Trudeau for October 15, 1979
Transcript:
Mark: Who was the phone for? Mike: Zonker again. Mark: He's sure been getting a lot of calls lately. Mike: Well, they're all concerning his Uncle Duke. Zonk is Duke's only close relative. Ever since Duke disappeared, his caretaker, Brenner, has been referring all Duke's creditors to Zonker. Zonker: He's not dead yet, dammit! Voice: Look, kid, I only know what I read in the papers.