Animals live in worlds all their own. Frequently, their behavior is near impossible for humans to understand. This is why your cat sometimes runs into the room, meows, then runs out. Or why your dog will randomly decide to tear up the sofa despite leaving it alone for several years prior.

Sure, this is mostly harmless when it comes to small animals, but once a big animal decides that it’s angry, you really need to watch out. For example, this cow suddenly realized that he hated another cow’s guts — and so, he let the other cow know. With his head.