OK, first time I did pullovers, I grabbed a dumbell that was too heavy. So when I layed down on the bench and extended my arms back, I ended up flipping myself over.
I was benching without any collars once. It was a monday, and every bench was taken, except for the one that was slightly off balance. So, like a dumbass I decided I'd use it anyway. It wasn't long before one of the weights slid off. Then the chain reaction starts, and everything comes off.
The first time I was on a treadmill, like an idiot, I decided to see how fast it could go. So I cranked it up to the max. Next thing I know, I'm sailing half way across the gym.
I was inclining without a spotter once. Well, I couldn't get the weight up, and had to set it down in my lap. There wasn't anyone around (it was midnight), so I figure I'll just lift it off my lap and set it down. Let me tell you, doing a 205lb upright row, while seated is not the best thing for your wrists. I ended up spraining both of them.