Blonde city gal
 

Amy, a blonde city girl,
marries a farmer. One morning, before he goes out to the fields, the
farmer says to her,

"The artificial insemination man is coming to
impregnate one of our cows today. I drove a nail into the two-by-four
above the cow's stall. You show him where it is, okay?"

The farmer leaves for the fields and a while later the artificial insemination man arrives.

Amy takes him down the long row of cows until she sees the nail and tells him, "This is the one. This one right here!"

Terribly impressed, the man asks, "How did you know this is the cow to be bred?"

> "By the nail over its stall," Amy explains. Then the inseminator
asks, "What's the nail for?" As she walks away she tells him, "I guess
it's to hang your pants on. [...]