I had a friend that was a waiter through college. After working his butt off for a particular table, they left him a 25 cent tip. He wasn't rude about it, but told them if that was all they could afford, they needed the quarter worse then he did. While it was done somewhat facetiously I have tried to use that when people do steal things...I figure they must have needed it much worse then I did and hope that they enjoyed it.

(For example, I made my BIL a blanket for Christmas. The package was stolen off his front porch and he never got it. I was upset, but I hope who ever stole it needed that blanket and that it kept them warm this past winter).