This isn't my FB post but I have similar incidents
My husband and I went through the McDonald's driveway window and I gave the cashier a $5 bill. Our total was $4.25, so I also handed her 25c. She said, 'you gave me too much money.' I said, 'Yes I know, but this way you can just give me a dollar back.' She sighed and went to get the manager who... Sign in to see full entry.