Kind of strange question, not hobby related, but here goes:
Guy at work, he's been working in my office for about a year now, and after awhile I noticed this behavior of his: he never touches door handles with his bare hand. So whenever he has to open a door with a handle you have to rotate, he will either use the tail of his t-shirt to touch the handle. which looks kind of awkward, if you ask me, or sometimes I have seen him use an elbow to depress the handle, if the door has a lever type of handle. Never seen anything like this before, and I'm not the first to have noticed. Just a bit strange. Is it OCD? I don't know, that's not my field.
OK, we should just mind our own business, the guy's a productive worker and easy enough to get along with, and I should just let it go. But I'm just a little "weirded-out" every time I see this behavior, every day. It's just a little too much "Howard Hughes" for me, (without the wealth, though).