I have been told by colleagues (mainly non-technical) that some of my admin behaviors border on / cross the line between normal and obsessive, which sometimes leads me to wonder how screwed up I really am (read "how screwed up everyone else really is").

What are your obsessive behaviors when it comes to your sysadmin tasks and job functions? What do you do religiously that would make you twitch if you didn't do it or that others just roll their eyes at?

I have reasons for my actions. I want to prove to my coworkers that I'm not alone.