While out one morning in the park, a jogger found a brand tennis ball?

While out one morning in the park, a jogger found a brand

new tennis ball, and seeing nobody around it might belong

to, he slipped it into the pocket of his shorts.

Later, on his way home, he stopped at a pedestrian

crossing, waiting for the lights to change.

A girl standing next to him eyed the large bulge in his

shorts. "What's that?" she asked.

"Tennis ball," came the breathless reply.

"Oh," said the girl sympathetically, "that must be painful,

I had tennis elbow once."