A young boy enters a barber shop...and the barber whispers to his customer, "this is the dumbest kid in the world. Watch while I prove it to you."
The barber puts a dollar bill in one hand two quarters in the other, then calls the boy and asks, "which do you want, son? ". The boy takes two quarters and leaves.
"what did I tell you?" said the barber. "That kid never learns"
Later when the customer leaves, he sees the same young boy coming out of the ice-cream store.
"Hey son, may I ask you a question? Why did you take the two quarters instead of the dollar bill?"
The boy licked his ice-cream and replied, "Because the day I take the dollar, the game is over!"