Our Buff Orp roo used to go after me occasionally when I'd be in the pen with him and his 17 girls until I caught him, sat down, laid him on his back, kind of like cradling a baby and just held him for a few minutes petting him. He hates it, I can feel the tension in his muscles, he's a pretty big boy, but he does not struggle once caught and he no longer goes after me at all. My wife used to be afraid of him because he would attack her everytime she went into the pen, UNTIL she used the same tactic that I did. No more aggressive roo for us. Occasionally he will still act like he's thinking about going after us but a step or two in his direction always removes his aggressiveness instantly. My wife was planning to put our roo in the crock pot until she gathered the "courage" to employ my strategy and now she isn't afraid of him anymore. It's like I've always told her. He is just a 7 or 8 pound bird, just grab him and assert your dominance over him. Your roo may well never be "nice", ours is very aloof and wants nothing to do with attention from us, he usually will not even take food from our hands . Our hens will jump onto our laps when we sit in the pen with them and swarm us to get food out of our hands, but not the roo.