How do you control a mad cow? You obviously put it in an upside-down box so that only its head and its front legs pop out, and then you threaten it with a knife. Quiet! Bad cow! Stop mooing or I'll turn you into beef with this knife right here right now!
Oh and, why is the box upside down? Well, cows poop a lot, right? It's better for the cow to poop on the ground; you can then just simply move the box instead of having to clean it.