Doonesbury by Garry Trudeau for August 18, 1992
Transcript:
Jeff: Daddy, you've been acting kind of funny lately. Rick: I have? Well, yes, I guess I have. It's probably because I'm about to turn 40. Sometimes grown-ups get funny about their birthdays. Jeff: 40? Daddy, you can't be 40! Somebody's playing a trick on you! Robin Hood isn't even 40! Dinosaurs aren't allowed to be 40! 10 is too old! Rick: Great. Jeff: Dad, dad, you're not 40! That's ridiculous! Mommy's only 90!