Apparently an older homeless woman in Japan was living in the top compartment of a closet in someone else's house for close to a year. The owner of the home didnt catch on to it until he noticed food items missing from his kitchen, so instead of calling the police right away(?) he installed motion detecting cameras in the kitchen to MMS him images. Upon seeing an image of the woman in his kitchen the then decided to call the police and they apprehended her.
Makes me kinda wonder if it is really all that possible someone could be living in my home without knowing it!