One day the farmer brings a third bull into the field. The new bull is much younger than the other two, and immediately starts mating with cow after cow.

When the old bulls see this, one of them starts huffing, snorting, and scraping the ground with his hoof.

"Don't bother competing with that guy," says the other old bull. "You're too old. He'd laugh at you."

"I'm not trying to compete with him," replies the first old bull. "I just want him to know I'm not a cow."