The decal that shows Calvin from Calvin and Hobbes going to the bathroom has been stuck on the back of thousands of pick-up truck windows. Watterson never gave the decals his OK. So the bootlegs emerged.
But what of the mythical history of this meme? Finally, someone has a few answers. Phil Edwards isn't the first guy to plumb America's golden stream of folklore for insights into the peeing-Calvin meme, but he's certainly the most intrepid.