haha, these are all great. quadancer, yours is my favorite so far though I'm not sure I totally visualize the stunt.
Only 2 bloopers for me: Most recent was letting a fart slip on the ab machine. Unfortunately for me, I was facing a couple other gym members and they got the fully amplified version (think yelling with hands cupped around mouth). After I completed the set, they were both staring at me.
First blooper was when I was 15: benching w/no spotter, w/nobody in the gym, and accidently failed (ack!). Seeing the bar slowly approach me, I tried to slide down the bench and drop the bar right above my head. Too bad I had long hair at the time because the bar landed on it and pinned me to the bench! The next painful few moments were spent trying to release the hair from the bar on the bench *without* ripping it out of my head. I was partially successful.
Needless to say, I now have a shaved head and ALWAYS bench w/dumbells =)