I just watched a 1974 thriller, The Conversation. In it is the only realistic lock picking scene I've ever seen. What gives? How come modern TV shows and movies pantomime lock picking by sticking a single hairpin into the keyway and wiggling it a bit? Like making functional pencil erasers, the ability to depict lock picking seems to have been lost. This is not the dark ages. The knowledge hasn't actually been lost. So what happened?