A farmer had five female goats. Times were tough, so he decided to take them to the county fair and sell them.
At the fair, he met another farmer who owned five male goats. After chatting for a while, they agreed to mate their goats and split the profits 50/50.
The farmers lived sixty miles apart, so they decided to drive thirty miles each to find a field where the goats could mate.
On the first morning, the farmer with the female goats woke up at 5 A.M., loaded the goats into his old pickup truck—the only vehicle he had—and drove the thirty miles. While the goats were mating, he asked the other farmer, “How will I know if they’re pregnant?”
The other farmer replied, “If they’re lying in the grass tomorrow morning, they’re pregnant. If they’re in the mud, they’re not.”
The next morning, the goats were playing in the mud. Frustrated, he hosed them off, loaded them back into the pickup truck, and tried again. This routine continued for over a week, and both farmers were exhausted.
Finally, one morning, he was too tired to get out of bed. He called to his wife, “Honey, please look outside and tell me if the goats are in the mud or in the grass.”
“Neither!” his wife shouted back. “They’re in the pickup truck, and one of them is honking the horn!”