Uncle Albert is staying for the weekend, and little Ernie is asking him all sorts of questions.
“Uncle Albert,” he asks, “why are some men bald on the front of their head?”
“Well,” replies Uncle Albert, “these men are the great thinkers.”
“And what about the men that are bald on the back of their head?” asks little Ernie.
“These men,” explains Uncle Albert, “are the great fuckers.”
“So what does it mean,” continues little Ernie, “when they are bald all over?”
“That’s obvious,” replies Uncle Albert, “these men think they are great fuckers.”