The last couple of days my little darlings have taken to pecking my arm when I take out their feeders, etc. If I wear a sweatshirt, they grab on to the sweatshirt. They aren't being "attack chickens", they just know that arm is associated with food. I like that they are friendly, but I don't want them to peck people. . . . .they are only three weeks old- what can I do when they swarm me and peck without seriously hurting one? Or do I start wearing metal sleeves???