A man in the pub orders a beer. He gets his beer and begins to drink it when he notices that the beer is kind of warm. So he mentions something to the bartender, who tells him to shut up and just drink his beer.
Then it is time to pay and instead of giving three $1 dollar bills to the bartender, the guy throws 30 dimes behind the counter. The bartender is pissed, and is on his hands and knees collecting change as the guy leaves.
The next day the man is back, and he comes in waiving a $5 dollar bill. The bartender thinks, "Okay, business is business," and lets him in. Again, the beer is kind of warm, but the guy doesn't say anything.
Comes time to pay, the man gives him the $5 bill. The bartender goes to the register to get the change, but instead of taking out two $1 dollar bills, he takes out 20 dimes and throws them all around the entire pub. The bartender says, "Here is your damn change."
The man looks around and remains quite calm. He takes out ten dimes, throws them behind the counter and says, "Gimme another beer!"