Noonan decides to give up the city life and buys a farm to raise pigs. His neighbor Slim comes over and notices that all the pigs are female. He tells him that he is going to need a male to breed the pigs.
In the mean time, Slim offers him the use of his stud. He tells Noonan to load up his pigs and bring them over. Noonan asks how he will know if they are pregnant. Slim says, "You bring the pigs back, and the next morning check to see if any are grazing on the grass, because pigs never graze if they are not pregnant."
The next morning Noonan looks out and none are grazing. He calls Slim and Slim says bring all the pigs over and try again. The next morning he looks out and none are grazing. Slim says bring them over one more time.
The next morning he can't even bear to look out the window. Noonan asks his wife to go look. She says, "No, none are grazing. But most of them are in the truck and one is honking the horn!"