Calvin and Hobbes by Bill Watterson for October 01, 1988
Transcript:
Calvin: Hi, Dad! Guess what Hobbes and I did! We went to Mars! Dad: Well, well. Calvin: Yep. We were going to live there because Earth is so polluted, but we discovered that Mars is inhabited, so we came back home. Dad: You don't like the martians? Calvin: No, they didn't like us. I think they were afraid we'd junk up Mars the way we've junked up Earth. Dad: What's my good briefcase doing out and why does it smell like tuna fish?! Calvin: And can you believe it, Dad? We go clear to Mars, and dumb ol' Hobbes forgets the camera!
Technically if you didn’t plan to return you’d never need the camera.