Hi Sara, I had a ferret many many years ago that I moved with me to CA [along with a small colony of siblings]. He was so depressed and frustrated from the move, that he started mounting the other ferrets. I, too, thought it was adrenal and my heart sank. Unfortunally, I was in CA and was too afraid to take him to a vet. He continued the behavior all the way up til we moved back to Iowa, where it immeditally stopped. I took him to the vet anyway and the vet told me that they can behave this way for MANY reasons-from stress or a slight change in something, etc. Anyhow, I hope this helps your friend a little bit. I'm not saying to rule out adrenal or anything, but just wanted you to know that there are other reasons for mounting. Take Care, Apryl [Posted in FML issue 3326]