Early one morning, a newly married rancher on his way to town to pick-up some supplies asked his new young wife
if she would do him a favor.

He told her, "The artificial insemination man is coming out
to impregnate one of our cows today. I drove a nail into the
two-by-four just above the cow's stall in the barn. Can you
show him where the cow is when he gets here?"

A short time later the artificial insemination man arrives
and knocks on the front door.

The woman takes him down
to the barn.

They walk along a long row of cows and when
she sees the nail, she stops and tells him, "This is the one
. . right here."

Terribly impressed by what he assumed was just another
dizzy blond, the man asks, "How did you know this is the
cow to be bred?"

"That's simple -- by the nail over its stall," the young woman
explains.

Then the man asks, "What's the nail for?"

As she walks away, she says over her shoulder - ...... "I
thought it was to hang your pants on."