I have a tie for two
1) I relieved myself on the King Cobra once.
2) My friends and I went to KI, drunken fest, we were all in college. Well I'm kind of a big dude. We get on drop zone. I pull the chest restraint down and it pops back up, pull it down again and it pops back up again. We are facing the line of people waiting. I start getting embarrassed. The line operator comes around to check the harnesses out. He gets to me and I lean into him and tell him that I don't care what he does, but he'd better get me buckled in. My friends start losing it. They are all cracking up and screaming "Get the fat guy off the ride.... He's too fat...." and so on. He calls for another worker and she starts jumping and thrusting the harness into my chest, which of course sends my gang into a ruckus. By now all the people in the line have caught on and now they are all laughing... Finally they had to release all the harnesses on everybody to let me off the ride .... Nice...