Doonesbury by Garry Trudeau for April 26, 1980
Transcript:
Man: I know what you're wondering, barkeep. Mark: Huh? Man: You're wondering how a guy back for his fortieth reunion could look so much better than all his classmates, right? Mark: It's like you read my mind, sir. Man: Well, my boy, the secret is to stay involved and active. My philosophy has always been if you think young, you'll look young! Mark: Sounds reasonable to me, sir. Man: Of course, a good hairpiece can make a world of difference, too. Mark: I was about to say.