They are both empty from the neck up.
YOU DON'T KNOW, MAN, YOU WEREN'T THERE!!! YOU DON'T KNOW!!!
Lou!
Not enough cement EDIT: Okay thanks for pointing out that I messed up the wording but the joke is supposed to be the funny part
Because he was a neck-romancer....
They're both empty from the neck up.
I'm just not hoppy anymore man