Yeah, he might need surgery in a few years. Martial artists can wield an incredible amount of power, with an average kick for an adult delivering around 1,000 pounds of force. This is bad enough when they wield it against an opponent’s legs, but testing out this strength in the real world, one can see just how devastating a blow from a well-trained fighter can be.

For example, this guy shows off his strength by setting up an iron bar, then loading a good kick into it. The ease with which it bends shows why you really shouldn’t mess with someone like this.