The only cow in a small Kentucky town stopped giving milk. The people did some research and found that they could buy a cow just across the state line in Illinois for $200.
They brought the cow from Illinois and the cow was wonderful. It produced lots of milk all of the time, and the people were very happy.
They decided to acquire a bull to mate with the cow to produce more cows like it. They would never have to worry about their milk supply again.
They bought the bull and put it in the pasture with their beloved cow. However, whenever the bull tried to mount the cow, the cow would move away. No matter what approach the bull tried, the cow would move away from the bull and he could not succeed in his quest. The people were very upset and decided to ask the Vet, who was very wise, what to do.