Doonesbury by Garry Trudeau for March 12, 1977
Transcript:
Benny: Hey, Clyde, could I make a little suggestion?...I know you want to go it alone, but I really think you should call your grandmother. All the serious rooties swear by grandmothers! Clyde: Hmm...maybe you're right, man. My grandmother used to tell family stories all the time. She had about a million of them! Benny: Well, there you have it! Clyde: I think she died, though... Benny: Clyde, have you done your basic homework here?