One of my 4 week-old chicks loves to jump up on my lap & my shoulder. She will peck at my hair, my ears, my freckles, and even my teeth! She also sometimes "bites" my fingers to see if I have snacks. None of this is painful, but she is still pretty small. My first batch of chicks were pretty stand-offish, so I have been enjoying the fact that one of the younger batch is so friendly to me. Overall the younger batch is pretty friendly to me- they will run up to my hands if I put them in the brooder; check for treats; let me pick them up, etc. I'm just starting to wonder whether this might cause problem as she gets older/bigger. Anyone have thoughts or experience?