Im sorry to hear about your trouble, Its happens to the best of us.
One time a kid came over with his brother and one of them asked to see my room, well i showed him around and as soon as i turned my back i seen him shoving something in his pants. I went to check out my stuff on the dresser and my bag was gone so i grabbed him by the sleeve and asked for the bag he eventually gave it back but he almost stole it, thank god he is stupid