Doonesbury by Garry Trudeau for March 23, 1973
Transcript:
Voice: I think you're wasting your time, dear. B.D.: Well, I've got to try, Mom! Or else his mind is going to turn to mush. Dad, I... Man: Hey, hey! Quiet! Don't say anything! Dagnabbit! I missed a key line! B.D., how many times have I told you never to interrupt me during... during... what am I watching, anyway? B.D.: Dad, we've got to talk...