Why does Mia insist on eating hair that she finds on the floor after I clean my brush and stuff. If I'm sleeping and she climbs up on the pillow near my head she will pull the hair off my head and chew on it. She also eats my wigs if they are somewhere that she can get to them. I buy her Friskies to eat, the dry type. Is she looking for minerals or something or is it just fun for her. Some times she chockes though and i worry about that?