The other day I went to get some Thai takeout. The staff was very nice and poured me some water while I was waiting. Then the waitress brought me my bill: $110.68.
She had added an extra zero. But here's the catch: they didn't know how to cancel the transaction. Or they didn't want to. I heard the owner grumbling about the 50 cent fee. So they gave me $100 cash back.
Ordinarily I would be pretty annoyed. But it was some damn good pad Thai.