A blonde city girl named Sue marries a Colorado rancher.
One morning, on his way out to check on the cows, the rancher says to Sue,
"The insemination man is coming over to impregnate one of our cows today.
I drove a nail into the 2 by 4 just above where the cow's stall is in the
barn. Please show him where the cow is when he gets here, OK?"