A young boy enters a barbershop 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 and two quarters in the other, then calls the kid over and asks, "Which do you want, son?" The boy takes the quarters and leaves.

"What did I tell you?" said the barber. "That kid never learns"

When the customer leaves, he sees that same boy coming out of the ice cream store. He asks, "Hey son! Why did you take the quarters instead of the dollar bill?"

The boy licked his cone and said, "Because the day I take the dollar, the game's over!"