This is asked half jokingly Being a relatively new member and scanning posts on this forum, it seems likely to me that there is a high number of obsessive compulsive disorder personalities. I know the more I got into this forum I started making many trips to autoparts stores looking for oil. Part of it was interest in a new topic, but part of it was trying to find the best oil at the best price for my needs. The thing is, I'm over a thousand miles away from needing to do an oil change. It suddenly dawned on me today "what the heck am I doing?" I haven't been diagnosed with ocd myself, but when I get into a subject I have a hard time letting it go for a bit of time.