I just went to a local diner/ice cream shop for the most delicious of Egg Creams. It was $2.99. I handed the woman a twenty. She gave me back 2 singles and 2 fives. I politely explained that her change was not correct. She looked at it, and said it was. When I didn't agree and leave, she called over a second employee who looked and said it was right. Now I love this shop, and would have no reason to think they'd be dishonest. . . . . I just really don't think they knew how to make change. I had to stand there and explain in baby steps, the drink was three + one is four + one is five +five is ten + five is fifteen. . . . you still owe me five. I was pointing to each bill as we went through this until it finally clicked.
I felt bad, but come on now! Also, they actually owed my one penny more, which I always find strange, but whatever. The employee made the decision that I didn't want the last of my change. I get it when the bill is just over a dollar amount and they decide not to charge you those few cents, but it seems presumptous that they make the decision that the customer doesn't want their change.