The roo that spurred me was a good one. I spent a lot of time trying to figure him out. He was perfectly docile until he heard a hen fuss. At that point, if I was near them, he came after me. Didn't matter that the hen was fussing at another hen, he came after me. I learned his trigger and...
In your defense, he hadn't acted that way before and they can come at you like lightning. The last time one got me I had deep puncture wounds in my thigh and shock in my brain and he was well on his way away before I realized what had even happened (that rooster had never even cackled at me...
My ex-father-in-law 2x4'd a buff orpington attack roo I had and knocked him out cold. He was out for about 10 minutes and woozy for the next 24 hours. He went right back to his mean attacking self by the third day.