Backhand to the Corner

A man has to take on up a sport at the advice of his doctor, so he decides to play tennis. After a couple of weeks his buddy asks him how he's doing. "It's going fine," the man says, "When I'm on the court and I see the ball speeding towards me my brain immediately says: To the corner! Back hand! To the net! Smash! Go back!" "Really? What happens then?" his friend asks enthusiastically. "Then my body says, 'Who? Me? Don't talk nonsense!'"