My big boy Legs has never tried to do anything that shows any aggression at all. When I get pecked it is at treat time when I'm hand feeding and they miss the treat and get a piece of my and or a finger over from the treat. Any of the roos can do this. Legs never has. He takes it very easy as dainty as a pet pullet would. I can see how a PBA could cause a lot of pain with the beak they have. They could latch on like a snapping turtle.