I've heard that silkies are supposed to be really sweet birds. A friend gave me a silkie roo a couple of years back, and he was mean! Every time I put the feed dish in the pen, he would attack it, along with my hand. I would roll him, hold him on his back (like an alpha roll with a dog) kick him out of the way, etc. He never stopped. A predator finally took him out.
Leghorn dyed chick that was super needy as a chick got to be questionable as an adult. I would catch him sidling up to me with my back turned, like he was going to attack. I would always be on the lookout for him and walk aggressively towards him when he did that. I think he could have gotten to be dangerous, but he came out of the pen and attacked my pit bull ,and she permanently handled the situation.
My Buff Orpington roo is very sweet in comparison.
A Barred Rock pullet chick I bought a week ago is looking very much like a roo right now. Wonder what the return policy is at the feed store........... and if they are nice roosters.