A farmer goes in half with a friend to buy a bull so he can increase his stock.
A couple of weeks later the friend comes by to see how his investment is doing. The farmer complains that the bull just eats grass and won't look at the cows. His friend suggests that a veterinarian have a look at the bull.
The following week his friend returns to see if the vet helped. The farmer looks delighted: "The bull has taken care of all my cows, broke through the fence, and has even serviced all my neighbour's cows!"
"Wow," says his friend, "what did the vet do to that bull?"
"Just gave him some pills'" said the farmer.
"What kind of pills?" asked his friend.
"I don't know, but they sort of taste like peppermint."