Calvin and Hobbes by Bill Watterson for January 22, 1987
Hobbes: Well, well! It's an invitation to Susie Derkins' birthday party. How nice. Calvin: Susie invited you? What about me? Does it say me too? Hobbes: No, it doesn't say anything about you. Calvin: She must have mailed my invitation separately. She probably wanted to insure if so she'll kow it didn't get lost. Sometimes those take longer. I'll have to sign for it and all. I'm sure she's taking no chances with mine. Hobbes: Oh wait. On the back it says, "You can bring that stupid kid you hang around with, if you must."