A manager was told by his doctor to take up some sport for exercise so he decided to play tennis. After a couple of weeks, his administrative assistant asked him how he was doing.

"It's going fine," the manager said. "When I'm on the court and I see the ball speeding towards me my brain immediately says: To the corner! Backhand! To the net! Smash! Go back!"

"Really? What happens then?" the woman asked enthusiastically.

"Then my body says, 'Who? Me? Don't talk nonsense!'"