Uncovered

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

One morning, on his way out to check on the cows, the rancher says to Amy, "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 so you know which one it is. You show him where the cow is when he gets here, OK?"

She says OK, and the rancher leaves for the fields.

A few hours later, the artificial insemination man arrives and knocks on the front door, and Amy takes him down 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 was just another ditzy blonde, the man asks, "Tell me little lady, how did you know this is the cow to be bred?"

"That's simple," she says pointing. "By the nail over its stall"

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

"Well," she says as she turns to walk away, "I guess it's to hang your pants on."