Remember if you get mad he will be stealing more than just physical object but also your mental peace. These things happen. I'm sorry to hear it happened to you. That being said i would probably get really pissed off it happened to me, its natural.
Yeah It just annoying because know I am thinking that maybe it was a old friend that may of done it and I don't want to deal with changing shit because people are assholes.....I wish I could get the guy in a cage and pound on him for five, five min. rounds then choke him out.