On Simpleton farm, there resided a herd of cows and bulls grazing the open pastures and mindless living, unknowingly being kept alive to supply milk for the humans. It was a pitiful existence and the gods saw the injustice of it all, do if any animal deserved to replace humans, or was certainly cows. As they themselves lived with injustice, they could know how to properly treat the earth.
While the gods were in the middle of activating the spell to change the roles around, one of the humans living on the farm went out to the pasture. The human was a young girl, called Bethany, of about 18 or 19 years and wasn't anything special to look at. She leaned on the side of the fence gazing to the cows and bulls, mindlessly grazing on the grass.
*sigh* "Jeez I'm exhausted. Looking after the farm with my family and university is all so hard. I wish that I had a more simple life, like the cows in here. All they do is spend there days eating without any worry." Unbeknownst to her, her wish would unknowingly be granted.