A big, burly, six foot man has a very tiny head, about the size of an orange. He goes into a bar and everyone in the place is staring at him as he asks the bartender for a drink.
The bartender gives the man the drink and, unable to resist, says to the man, "I'm sorry, but I really have to ask. You're such a big guy and you have such a small head. What happened?"
"Well," squeaks the man, "I was walking along the beach one day when I saw this lamp half buried in the sand. I picked it up, rubbed it, and this beautiful genie appeared.
"She said, 'You can have anything you want.'
"I said, 'Okay, let's screw.'
"But," she said, " 'genies don't screw.'
"So I said, 'All right, then how about a little head?'"