A gorilla walks into a bar and orders a martini. Bartender has never seen a gorilla in the bar, doesn't know what to do so he goes to the back to ask his boss.
Boss says, "Go ahead and serve him. But overcharge him - gorillas aren't too smart."
Bartender goes back to the bar, serves the gorilla a martini.
Gorilla pays with a ten dollar note, and bartender gives him one dollar back in change.
Bartender is really curious. "You know," he says, "we don't get many gorillas in here."
"No wonder," says the gorilla, "with these prices!"