Long long ago, chickens laid eggs in part of the farmer’s barn. Each morning, the farmer’s wife went to the hen part, and moved the birds from their nests in order to swipe their eggs. When she had harvested enough eggs, the family went to the nearest town to sell them to folks who didn’t have chickens.
The family returned home after selling all their eggs and put this nest egg in a holder designed to look like a pig. When this chicken feed filled the pig, the farmer hacked it to pieces and the family used the money to buy cows.
The cows were sent to the barn where the farmer’s wife could find them each morning after she stole the eggs. She milked the cows for all they were worth. The family took the milk to town and sold it along with the eggs. When they came home, they again pigged their coins until there was enough chicken feed to buy a real pig or two.