Miles has OCD/CCD behaviors too. He chases shadows, lights, and the reflections from watches and wine glasses. This behavior started to intensify after he had a bad fall; he fell off of our loft onto the wood floor below about 1.5 years ago. As soon as he hit the ground he seizured pretty bad. He has not seizured since (that we're aware of), but the vet did say that he could have some damage down the road. Personally, I believe that his fall contributed to his OCD/CCD tendencies. I work with a homeopathic vet that gives him stramonium; this seems to help with these behaviors. He tends to zone out and frantically chase/stalk shadows and reflections. He needs another dose now because lately he sits and stares at the bathroom wall, waiting for the shadows to move He is so fixated that it is virtually impossible to snap him out of it. The stramonium really helps though, so maybe that's something to look into? Good luckI found this post while searching "OCD" behavior. I've just been told that Lucky exhibits these types of behaviors when it comes to hunting. When he gets in the zone, he doesn't listen, he doesn't know his name and he will not come or be caught. He is completly in a trance and not able to snap out of it. We have taken on the task of trying to modify this behavior with the use of more mental stimulation, outdoor activities that involve him and us (the humans) and I will be talking to the vet about this in two days when I go. Does anyone have any advise as to how to deal with this? It's becoming a safety issue at this point.