Two friends, Smith and Jones, went together to play the slot machines at the casino. Each agreed that when his allotted money was gone, he would go set on the bench and wait for the other to finish. Jones quickly lost all of his money and went to sit on the bench. He waited and waited and waited and waited. After what seemed an eternity, he saw Smith coming toward him carrying a huge sack of coins.
"Hey, Jones," said Smith, "how’d you do?"
"Well, Smith", said Jones, "you see me here on this bench- what do you think? It looks like you hit it big, though."
"Oh yeah," said Smith, "did I find a good machine! It’s way in the back. I’ll show it to you-you can’t lose! EVERY TIME YOU PUT IN A DOLLAR FOUR QUARTERS COME OUT!!!"