I came home to my apartment tonight (it's a 3 bedroom apt) and all the doors to all the rooms were open. I called my parents to see if maybe one of them stopped by to pick some things up since they're moving into a house and I'm getting my own apartment, and they said they never came over. I went all thru the rooms and it doesn't look like anything has been touched or taken. I know I didn't open those doors, so I'm thinking someone from the complex office came in here without me knowing it because the door was locked when I left this morning and my family and I are the only ones who have keys to it except for the office. And our lease doesn't have a clause in it that allows them to show the apartment off when we're not here or without our permission. And I have no solid proof that they've been in here.

So my question is, is there a way I can set up some booby traps that will catch whoever is coming in here, and what kind of booby traps? I am thinking of setting up my computer camera to record images if there's movement, but I'm not quite sure how to do it, and I want to scare the living hell out of whoever is coming in here when I'm not home. Please give me some suggestions because I don't like the fact that these people are coming into my home without my permission.