We had a lunch thief who would hit a few times a week. We anounced it several times. Kept happening. Finally somebody got pissed enough to act. They got a really nice deli sandwich, got the hottest spices they could get their hands on and put them on just enough to make it intolerable, but not enough to smell hot.

The millionaire owner's son was stealing them. Asshole drove around in a $130k car. He cried like a little bitch, wined that he didn't have time to go out for lunch. Got daddy to send upper management in to scold our manager. Our manager read the prepared statement with as much sarcasm as they could muster and no more sandwhiches were stolen.