Exercise balls have become a great use for workouts. They're great for doing push ups, crunches, yoga, etc. And it turns out that there are many other uses for exercise balls, such as bopping your head on them, throwing them at your friends, hopping on them, breaking falls, and did we mention getting hit in the head...at it doesn't hurt. Here are our picks for fails with exercise balls.
... and disable advertisements! No kidding :)