The guy in the video chose two of the most cheaply made locks in the world to use as examples. First he went to a ton of trouble duplicating a key for a lock that any simple screw driver or knife will open and then he uses a razor blade for a job a nail file or hack saw would have finished in a couple of seconds. Try to open any lock that is not a toy the same ways and you're in for a huge surprise. Oh and like someone else pointed out; Both locks this guy used could have been opened with one light hit from a hammer or rock. Again, try that with any reputable lock and it's not gonna be so easy.