Ive had 1 stolen and even had the film stolen out of another back in the day when film cameras were still the norm. Obviously more pissed about the camera being stolen but I felt a little more raped when I noticed that some a-hole actually took the time to turn off the camera and get inside just to take it about and take the film. Then proceed to put it all back together again.

Just a thought, buy a cheap film camera, put it high in the tree, turn the flash off (because they are obviously doing it during the daylight), and point it directly at the other camera where the only pics you will get are of someone or something that actually touches it.