I've got a brahma rooster that used to be a sweetheart but over the last couple of months has turned into a terror. I got him from meyer hatchery last April and he has been handled ever since I got him. The first time he jumped on someone was when my little sister was in the pen by herself. He jumped on her and backed her into a corner and kept jumping on her. My little sister is 11 years old and weighs about 75 pounds and this 12 pound rooster just goes berserk on her. Since then he has tried to jump on just about everyone that enters the pen with him. Even this morning I went out and refilled the they're feed and after I was out of the pen with the gate locked I see him run up and headbutt the gate. My question is, Will he grow out of this or will he forever be a vicious tyrant? I got Brahmas because they were supposed to be very docile and friendly but it broke my little sisters heart when he attacked her.