Expensive
Two Scotsmen, Sandy and Angus, are playing golf one day and come upon a water hole. Sandy hits and sends one into the middle of the pond. He reaches into his bag and finds that he has no balls remaining. He asks Angus for a ball and promptly hits that one into the pond as well.
This goes on 3 or 4 more times and when he asks Angus for a 6th ball, Angus says, “Sandy, these balls cost me a lot of money,” to which Sandy replies, “If you can’t afford to play the game, you should not be out here.”