Simon  gets these chronic migraine headaches. One day he sees a doctor
about his problem. The doctor gives him a thorough examination and says, "I can cure your
headaches, but I'll have to cut your balls off to do it." 

At first Simon is horrified at this idea, but the headaches keep getting
worse and worse. He can't work or sleep, his sex life is nonexistent, and he's generally
miserable. Finally, he goes back to the doctor and says, "I don't care anymore, cut them off. 
Just get rid of these damned headaches! 

The doctor performs the operation, and immediately the headaches go away.
Simon is relatively happy, now. He may not have a sex life, but he figures this is price he has
to pay for a life without pain.

One day, he decides to get himself a new wardrobe. He goes to this nice new
men's shop downtown. As soon as he walks in the door, the clerk looks carefully at
him and says, "You wear a 44 long jacket, don't you?" 

Simon says, "Yeah, how did you know?" 

"It's in the eye," says the clerk. "Your neck is seventeen and one quarter inches, but given your
build, medium shirt sleeves should work." 

"That is incredible!" Simon says. 

"Hmm... and you wear a 36 large jockstap." 

"Ah hah! You're wrong," Simon says gleefully. "I wear a 32 small jockstrap." 

"No, you have to wear a 36 large," says the clerk. 

"Look, I'm sorry, but you're wrong. I wear a 32 small." 

"That's impossible," says the confused clerk. "A 32 small jockstrap would
pinch your balls and give you migraine headaches."