This story from the Washington Post caught my eye. It's about a restaurant in Virginia.
Apparently, employees at this restaurant didn't much care for one of the customers (who had been rude to them), so they goofed around with the receipt--typing in things like "I'm a plaid asshole" and "I have a small penis". The only problem is that they forgot to delete those messages and actually gave the check to the customer that way.
Whoops.
On the other hand, the fact that this customer immediately took it to the press is an indication that they just might have correctly identified him.