Everyone here is right on. Just before Christmas my huge cockerel grabbed my pant leg when I went out to deliver treats, and I thought he was just being impatient. Then I realized that sound he had been making for two weeks prior was actually growling. He would turn his head sideways, and look up at me with that one eye, growling and I knew right then what he had in mind for me. I spent the next couple of days shooing him out of the coop while I cleaned it.If I was outside the run he would see me and come running, snarling. His last night here I had gone to lock up the coop(same routine as always), and when I opened the door, there he STOOD in the window, giving me that stink eye, growling, and now higher than me.I got up on the lower roost(made me higher), turned him around with my gloved hand, pushed him down, and exited. It's a much more peaceful place without him now. The girls and young cockerels snuggle together at night, I'm getting over my fear from that terrorist, and once again I can go clean out the coop with mere caution. I'll always believe he was mental because I hatched him, and he was a sole hatchling. He was brooded by humans, no hatchmates, no broody, just a mirror and a lot of human interaction. I'm still learning the dynamics of a flock. It's weird that the more affection you show a cockerel, the more he just could hate you for it later.So glad puppies aren't like that.
Mi2bugz, I wish you luck. If he takes out someone's eye, you'll have many regrets. You know what you need to do.