So J and I happened to remember a story from his old job that I just had to put up here because it was so funny. They got a call at the PD, because a man had went to the local pizza parlor, had himself a bowl of soup, a salad, and some pizza. When the check came, he flipped it over and wrote "I have no money. Since this means I cannot pay for this food, I realize the police will need to be called. I will wait patiently until they arrive."
First of all it was pretty damn funny that this was how he would 'turn himself in', so to speak. But he hadn't done anything other than steal the food, since he ordered and ate it, knowing he couldn't pay for it. So they knew he just wanted 3 hots and a cot at the jail, hence he came up with a way to get arrested. Instead, they took him down to the shelter.
The stories like this always have a sad side to them, because you know this guy just wanted a roof and guaranteed food. If he was genuinely a crackhead, he wouldn't have had a problem attacking somebody on the street, or something similarly violent to get arrested. But it is pretty funny when you think about it.