Risk vs. Reward?

Do a youtube video search for "kettlebell exercises," and you'll find many exercises that are ridiculously complicated.  When you see them, don't just immediately attempt to perform them.  First ask yourself, "Why?"  Every exercise has a "cost versus benefit ratio."  That means every exercise you perform has inherent risk for injury, some more than others.  Likewise, each exercise has inherent benefits, which when performed correctly and consistently, outweigh its risks for injury.  Before you perform any exercise, be CERTAIN that the potential reward greatly outweighs any risks.  If you find yourself performing a pushup on a "bottom-up" kettlebell, while simultaneously having your feet wobbling on top of a stability ball, don't complain when you make your trip to the dentist!