Extracting the Wisdom Tooth

One day, a man walks into a dentist's office and asks how much it will cost to extract wisdom teeth. "Eighty dollars," the dentist says. "That's a ridiculous amount," the man says. "Isn't there a cheaper way?" "Well," the dentist says, "if I don't use an anesthetic, I can knock it down to $60.00, but it would be very painful" "That's still too expensive," the man says. "Okay," says the dentist. "I can save time if instead of using my normal surgical procedure, I simply rip the teeth out with a pair of pliers. I could get away with charging $20.00" "Nope," moans the man, "it's still too much." "Hmm," says the dentist, scratching his head. "If I let one of my students do it for the experience, I suppose I could charge you just $10.00" "Marvelous," says the man, "book my wife for next Tuesday!"