The valiant Spaceman Spiff is led by his captors to a secret dungeon to be debriefed! Little do they realize that our hero doesn't WEAR briefs!
Spaceman Spiff: A Short Fan-Made Animated Calvin And Hobbes Tribute

This is a tribute to Calvin And Hobbes in the form of a short Spaceman Spiff animation created by fan Joseph Conover. It’s pretty cute and, like any good dessert, left me wanting more. Speaking of — last night for dessert I had a chocolate chip cookie sandwich with white frosting in the middle. I could only eat half of it. I mean at the time, but I did finish it when I made my midnight snack run for the usual chocolate milk and spoonful of peanut butter, which I also had. “Ahem.” And the fudge my girlfriend was saving. “AHEM.” And apparently I peed on the toilet seat.