I had a client who was the K-9 trainer for a local county w/10 dogs, and also a k-9 handler himself. His dog was not dog-aggressive, and neither were the dept. dogs I met. A few were dominant and slightly possessive of their "stuff," but I didn't have a problem with them and Caleb, and I even brought Widget around a few dogs w/out incident. They seemed more likely to end a fight than stop one :wink: . I think part of it might be the handlers encouraging this perception. I know too many moronic, Napoleonic cops with too much time on their hands to not think this plays a role. :roll: The cops I know who actually have things to do make fun of these guys worse than I do, and say that these same dogs behave differently w/different handlers. So, I would guess that while some may be, probably not too many more than in the general population. Just a guess, though, based on the 12 or so K9s I've interacted with.