When I was boy, there was a game show on television called “Let’s Make A Deal.” On the show, a contestant was shown three curtains to choose from. Behind one of the curtains, there was usually a gag prize such as a live mule or a bucket of dirt. Behind the other two curtains were expenses prizes. The object of the game was to choose one of the curtains that had prizes behind it. After the contestant chose a curtain, the curtain was opened to reveal what the contestant won.