One day, a man walks into a dentists and asks how much it will cost to extract wisdom teeth.
“Eighty pounds says the dentist.
“That’s a ridiculous amount!”, the man says. “Isn’t there a cheaper way?”
“Well…”, the dentist says, “if you don't use anaesthetic, I can knock the price down to £60.”
Looking annoyed the man says, “That’s still too expensive!”
“Ok”, says the dentist. “If I save on anaesthetics and simply rip the teeth out with a pair of pliers, I can knock the price down to £20″.
“Nope, moans the man, “it’s still too much!”.
“Well”, says the dentist, scratching his head, “if I let one of my students do it, I suppose I can knock the price down to £10.”
“Marvellous!”, says the man,