What if you walked into an elevator and some dude was standing there with a hood on using his hands -- and only his hands -- to make the doors open and close without touching anything? Would it freak you out? Would you think to yourself, holy crap, is that whole Jedi thing actually real? Well a couple of guys decided to have fun with some unsuspecting elevator riders to see just how people might react if someone began using the Force for real.
It doesn't take a genius to figure out that if Superman actually punched you, things wouldn't turn out so great. But just how awful and dangerous and humiliating would it be? Of course there's a video for that!