The one that explained the Origins of the Mormon Religion was great, not only was it extremely funny, but it was 100% true...
'...Smoking's bad, smoking killed my dad. Yeah, he was driving down the highway one day and as he was lighting his cigarette, it blew out the window. So he jumps out the door to save it, and ran himself over. Uh, you mind if I smoke?' -Olie Ollaussen, Ski Bum extraordinaire