Culled my first BA roo today. He was aggressive towards humans and other chickens. I could tolerate his terrorism but when I witnessed him attempt to rip another chicks comb off. I'd had enough and permanently removed him from the flock. ... that being said, I've had 3 other BA roos and they've all been pets. You could pick them up and love them to bits! Such awesome and beautiful chickens! Blue Australorps are even more docile. 
