In the olden days, people used to enslave oxen to plow fields. In the U. S., land is still sold by the "acre" which means how much land you can plow with an ox in one day.
This shadowy figure enslaved a horse to take him to church on Sunday. This act of animal slavery gave rise to the word "horsepower" and led many a God-fearing man to his salvation.When I was little, I enslaved a squirrel. At Christmas time, he would crack open walnuts to serve to the guests. To this day, I enjoy slavery of all kinds.