Two farmers meet at a pig auction, they decide they should mate there pigs and split the profits 50/50, but they live 60 miles apart, so they decide they will each drive 30 miles and meet at an open field so they can mate there pigs. Well this goes on for several weeks. Then one farmer asks how do I know if the females are pregnant? The other replies: well if there in the mud there not pregnant, if there in the grass they are. So the next morning the farmer wakes up and asks his wife to look out the window and see if the pigs are in the mud or the grass. The wife replies: well neither there in the truck and ones honkin' the horn.