Golf Balls:

A man entered the bus with both of his front pockets full of golf balls, and sat down next to of all people a beautiful, you guessed it, blonde. The blonde kept looking quizzically at him and his bulging pockets.

Finally, after many such glances from her, he said, "It's golf balls".

Never-the-less, the blonde continued to look at him thought-fully and finally, not being able to contain her curiosity any longer, asked, "Does it hurt as much as tennis elbow?"