This guy went into a bar and ordered a beer.
He happened to look down the bar and see
a man sitting there with a head the size of a cue ball.

So he walked down and said to the man,
"Excuse me sir, I don't mean to be rude but
I noticed you have a small head. Is this a birth defect ?"

The man said
"No, I got this in the war. My ship was torpedoed by the German's
in WWII. I was the only survivor on the ship so I swam to shore.
One day a mermaid swam up to me and said she would grant me
three wishes. For my first wish I wanted to return to the U.S.

The mermaid granted that wish. My second wish was to have
all the money I would ever need. Wish granted. My third wish
was to have sex with the mermaid.

She said, 'I can't grant that wish because mermaids can't have sex.'"

So I asked, "How about a little head ?"