Hi, I have three rats - Templeton, Toby and Todd. They are around 8 months old and came from the same litter from a breeder. Over the course of a few months, Templeton has been barbering Toby to the point where he has symmetrical bald spots on his shoulders and sometimes has small scabs from nibbles. Templeton has more recently started barbering Todd and I don't know how to stop him from doing it. Is he stressed? Or is he just an a**hole?