They run around making loud irritating noises. And shit anywhere they can unless trained not to. No, I'm not describing toddlers.
Cockatoos. They can be quite a handful. Especially when they're venting out their frustrations. Being a cockatoo is not easy, people. Stupid humans ask you to say random things. They poke you. Don't clean your cage. Feed you the same shit everyday. No Kurt, Polly doesn't want a cracker anymore. Stupid humans.
This is why this video makes total sense.