my cornish x goes nuts around food and attacks my 2 little chiks when they try to eat his food, today he tore out some feathers off my RIR butt and she screamed an took off, i pushed the roo and slapped him on the back of the head, he backed off a littl and was scared of me but pretty much forgot about it in 5 min. i wanted to know if you can accidentally or intentionally do something to chickens that will make them always cautious and scared around you? like they always remember what happened, or can they not remember that far back. my dog still remembers what guns are after he was abused with them, but i know chickens brains are tinier.