My black australorp was mean as he-- from the time he hit sexual maturity. Mating is mating, what we see as rough is a part of nature to them. As for being mean to anything else that moves, he aint worth the scars, infections, constantly looking over your shoulder and so on. I put up with this from Big Jake for 2 years. All the above I dealt with as well as a several hundred dollar dr. bill and horse pills 4 times  day for 10 days. I de-spurred him, helped the feathers on the hens but still hurt like he-- when he flogged me. I always had a forked stick with me, if I seen him coming and looked at him he would stop. take a step to the right to look at me with one eye. This went on every day as I also raise meat rabbits and quail.I even had a jail set up for him and he spent a great deal of time in it, as I would snatch him up and put him in lock up after an attack on me. He even put himself in there at night when I let him out to be with the girls every other day. One day was to much, and was the last time. I put im down on the spot. No more looking over my shoulder. No more putting him up to work in the yard. He will be replaced with another from fertile eggs from my neighbor, a hen that went broody 2 days after his departure, 7 of the 9 chicks made it. Folks, a mean rooster won't change, and they can hurt a child very bad, as they are easily capable of jumping high enough to flog a child's eye out. I am 6 feet tall and he has hit me in the lower back. he has punctured several gallon milk jugs, so human flesh is nothing to them.