Deadmau5 has a cat called Prof. Meowingtons, PhD, so named because he meows a lot, as in “meowing tons.” Prof. Meowingtons has his own Twitter account, which Deadmau5 claims is the only verified Twitter account belonging to an animal (although this is untrue, because Grumpy Cat is verified too). The Professor also has an Instagram, and he’s a feline entrepreneur…