We had someone break into the dojo one night, he came in through the side window. Fortunately we were sleeping over for the weekend seminar we were running... The look on his face when he turned round to have about 30 swords in his face used by people who weren't happy with being woken up in the middle of the night was....entertaining I have never seen anyone so pleased to see a policeman and get arrested. I dont think discussing how to use him for tameshigiri helped his underwear much either. Currently I insist everyone brings their stuff into the training area where we can see it, too many people have access to where we train so you darent risk it...