Funny I know some people who grew up with chickens who think they are nasty, aggressive and disagreeable. Like little dragons.
A mean rooster has a surprisingly high terror-to-size ratio, and can easily draw blood with its spurs. And they carry grudges, and they’ll stalk you.
I learned from that, and other experience of hand-to-hand combat with birds, wildcrafting eggs [1], and such, to "never let a bird see your back". I like it how those little red-wing blackbirds like to sit on POSTED: NO TRESSPASSING signs because that is their attitude. They'll dive bomb you but also flap really hard up high at the sky to nip at the wings of hawks who are lazily cruising. You might not even notice they have a nest to protect if they weren't getting in your face about it.
[1] at least seven years ago, I think...
I liked to play with the chicken, and by rewarding them with maize grains I have succeeded to train some of them to respond to a few simple commands, like coming to me when called and sitting down, waiting to be petted, and standing up upon commands. (Because those chicken were used to roam freely, they were shy of human contact. Normally it was difficult to catch any one of them.)
My grandparents and their neighbors were astonished, despite the fact that they have kept chicken for all their lives, because they believed that chicken are too dumb to act like this.