My grandfather's one scared me so much as a child I wouldn't walk past his cage on my own and he used to feed and water it by hooking the containers with a broom! Even then it would sometimes attack the broom handle!
EDIT:For some reason I couldn't comment or reply but I wanted to add, these were years apart, from different auctions, eggs, and breeders. My grandfather's one shamo was when I was just beyond toddling and I'm 18 now. My uncle has kept them for a few years (he loves them for some reason) but like I said, they scared him too and he wasn't going to risk having them going after his daughter when she started walking, given what they did to him as a fully grown adult!