Another Joke From The Potomac Runners Newsletter:

A young boy entered a barber shop, and the barber whispered to his customer, "This is the dumbest kid in the world. Watch while I prove it to you." The barber put a dollar bill in one hand and two quarters in the other, then called the boy over and asked, "Which do you want, son?" The boy took the quarters and left. "What did I tell you?" said the barber. "That kid never learns!" Later, when the customer left, he saw the same young boy coming out of the ice cream store. "Hey, son. May I ask you a question? Why did you take the quarters instead of the dollar bill?" The boy licked his cone and replied, "Because the day I take the dollar, the game's over."