This is delightful, and very close to Hugh Fearnley-Whittingstall's Meat Manifesto, which is in his cookbook/textbook on eating meat entitled, Meat. Basically, the contract we have with domesticated animals is that we'll remove the daily suffering of a wild animal's life, and in exchange we will eat you a time we specify. Having slaughtered animals myself, and watched animals die at the hands of foxes and (oh God) fishers. I'd say turning them upside down and making a single cut across their carotid artery is about as easy as it comes.