An old man wants to take up a sport, so he decides to play tennis. After a couple of weeks, his doctor asks him how hes doing.

Its going well, the man says. When Im 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!

Thats great, his doctor says.

But then my body says, the man continued.Who? Me? You must be kidding!