A man walks into a bar and orders a beer. The barman charges him 10 cents. Confused, but not complaining, the man pays.
After a while he decides to have another, and some food, so he orders another beer and a steak. The barman charges him 25 cents, 10 for the beer and 15 for the food.
After finishing his food and drink, he calls the barman over and says, "Mate, that was the best steak I've ever had. I want to talk to the manager and thank him."
"No problem," says the barman. "He's upstairs with my wife." "What's he doing upstairs with your wife?" asks the man.
"Probably the same thing I'm doing to his business down here!"