Ok, so someone gave me a box, I opened it, kaboom, box was trapped. So, I start messing around with my Tinker, to try and make one, because i remembered that it was the act of locking the box that set the trap. Lo and behold, I'm right. Box locked, is trapped, box not locked, untrapped. So I try locking it, and use magic unlock, open the box, no kaboom. How the heck did they do that?