First, thank you to all who have responded to my question regarding my neutered male who's showing aggressive behavior towards the females in our group. Every reply told me to look for Adrenal signs. My question is this, his behavior is on/off, and so far its the only sign. What can I have my vets do short of surgery to see if he's got adrenal problems? Bloodwork? After reading the Adrenal FAQ, it seems that bloodwork isn't that reliable. - Mish ____MICHELLE Z. MATTA____ Desktop Support Consultant Carnegie Mellon - Computing Services http://www.andrew.cmu.edu/user/mish/home.html [Posted in FML issue 2408]