Doonesbury by Garry Trudeau for March 12, 2015
Transcript:
Duke: It was really his own fault. I caught him breaking in... Leo: Man, what a mess! What'd you use, Duke, an M-60? Duke: Accidents happen, Leo. I hope I can trust you to keep this little mishap to yourself... Leo: Hey, have we ever let you down before, Duke? Remember that time I came out here and pumped out that lady's stomach? You never heard another word about that, did you? Duke: I'm hearing it right now, Leo. Leo: Hey, man, this dude's unconscious. That's going to be extra.
Did people use LEO for “law enforcement officer” in the ’70s or is his name just a coincidence?