Because he's a dick. He'll run across 300 feet of yard to attack me. I have to kick the crap out of him and chase him around to get him to leave me alone. If he's on the roost when you walk in, he'll fly off at your face. For some reason or another, all the females are dead, but his hatred has made him immortal. If he's exceptionally lucky, I'll put him in with the two afore mentioned hens to see if he throws some decent chicks with them and then they'll be typier and with a better attitude. If that doesn't work, I'm going to get rid of him.