Man sues after exercise ball bursts

You know that sudden burst of fear when you tip your chair back too far? This man's experience had to be a hundred times worse.

Back in 2005, 200-pound Pete Royal grabbed a pair of 75-pound dumbells and leaned back on an inflated exercise ball to start lifting. Bam! The inflatable burst from under him and Royal hit the floor sustaining serious injuries. Five surgeries later, he's now filing a lawsuit against the Jacksonville, Florida YMCA for lack of safe gym conditions, and TKO Sports Group -- manufacturer of the"anti-burst" inflatable, for mislabeling the ball.

I couldn't find any information on the anti-burst technology on TKO Sports Group's website, but I have read some inflatable exercise balls are designed to deflate slowly if punctured. Whether or not Royal leaned back upon a mislabeled or defective ball, the resulting injuries were nasty -- he couldn't use either arm for six months.