I have 10 hens, 5 RR, 3 Buff operingtons, and 2 Buff Bramas. 9 are very friendly, never aggressive, but 1 RR trys to attack me every time I go in there run. Even when taking in treats and such. Is this normal? I've raised them from 1 day old and never done anything to any of them that would make them scared of me.