The farmers wife

Monica, a blonde city girl, marries a Texas rancher.

One morning, on his way out to check on the cows, the rancher says to Monica, "The artificial insemination man is coming over 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. You show him where the cow is when he gets here."

Monica says "Okay?"

So the rancher leaves for the fields. After a while the artificial insemination man arrives and knocks on the front door. Monica walks with him down to the barn.

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

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

"That's simple - - By the nail over its stall." Monica explained very confidently.

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

Monica turns to walk away, and says, "I guess it's to hang your pants on".