The very mose evil I have ever had was a polish (white crested black) he attacked my dd who was 2 at the time, I gave him a break and a talking to the first time second didn't end so well, he went straight at her face with his spurs, he had charged me once or twice, he was rough on the hens. Two years ago a had a blue andalusion that was pretty bad, but he was a stealth attacker, you would just hear footsteps behind you, then he would get the back of your leg, if you turned around he would stop and act like he was eating or something (he is also not here). I have never had any trouble from my speckled sussex roos, or my ee roos, so far my two wellsummer roos are fine, one follows me a lot, but so far, they seem nice enough. I have a son of my mean blue out there that is leaving soon, he was a slow maturing bird, thought he was a hen all winter, he is free ranging, but he can get in with the hens over the fence on the run and is horrible with them, so he will leave.