chuckle

 Amy, a blonde city girl, marries a Colorado rancher.

   One morning, on his way out to check on the cows, the rancher says to
Amy, "The insemination man is coming over to impregnate one of our
sheep today. I drove a nail into the 2 by 4 just above the sheep's
stall in the  barn. You show him where the sheep is when he gets here,
OK?" So then the rancher leaves for the fields.

  After a while, the artificial insemination man arrives and knocks on the
front door. Amy takes him down to the barn. They walk along the row of
sheep and when she sees the nail, she tells him, "This is th e
one...right here."

  Terribly impressed by what he seemed to think just might be another
ditzy blonde, the man asks, "Tell me lady, how did you know this is the
sheep to be bred?"

   "That's simple. By the nail over its stall." Amy explains very confidently.

 Then the man asks, "What's the nail for?"
 She turns and walks away, and with complete confidence, says, "I
guess it's to hang your pants on."

That's farkin' funny.