One who knows how to play the saxophone, but doesn't!
or
Five: One to change the bulb and four to pull the ladder out from under him/her.
or
A buff-a-loan
or
Fireballs.
or
The bartender offers him a warm smile and says, "For you, no charge".
or
He made an illegal ewe turn.
or
Bison
or
Snaked.
or
It said Nah, I'm traveling light.
or
It wanted to see the mooooooon!
or