I have some 6 wk old chicks that I'm wondering if they have aggression that will come on later. These birds will at times come at my offered/extended hand, and it is evident they mean business. It isn't a hello greeting, but I'm unsure if it is a nasty one either, especially considering their age. Those of you that have had lots of experience with youngsters, can you tell me if this usually becomes aggression or meanness later on? Or is this just a "chicken game"?