Golf balls!

A man gets onto a bus with both his front trouser pockets full of golf balls and sat down next to (you guessed it) a blonde.

The puzzled blonde kept looking at him and his buldging pockets.

Finally, after many glances from her, he said "its golf balls"

The blonde continued to look at him for a long time, thinking deeply about what he said.

After several minutes, not being able to contain her curiosity any longer, she asked ..

"does it hurt as much as tennis elbow?"