The key answer of exercise 8

A man goes to a doctor and says ‘Doc, I think there’s something wrong with me. Every time I poke myself it hurts. Look!’ And he starts poking himself. He pokes himself in the leg. ‘Ouch!’ He pokes himself in the ribs. ‘Aagh!’ He pokes himself in the head and he literally screams in agony. ‘Aaaaagh! You see what I mean, Doc? You see how bad it is? What’s happening to me?’ And the doctor replies,‘Yes, you seem to have broken your finger!’