Beware of What You Wish For.

The door opened and a huge 6’5″ man walked into the restaurant and  up to the bar. He was almost as wide as he was tall with a neck the size of a tree trunk – but he had a tiny head. The barman was unable to hide his curiosity and addressed the stranger.
“Look, I’m sorry about this but I have to ask. You’re such a big man, yet you have such a tiny head. How come? The man shook his head in dismay.
“You’ll never believe this,” he replied “I was walking along the beach last Sunday and I found a magic lamp.” “Why, what happened”? asked the barman. “Well, I rubbed the lamp and this beautiful genie appeared.
She asked me what I wanted and I said I’d like us to have a shag. Well, you would, wouldn’t you?” said the big man confidently. “Yeah, yeah,” gasped the barman, “so what happened then?” “She said genies didn’t shag so was there anything else, and I said, okay then, how about a little head?”