My goodness there are a lot of OCDers on his forum actually it's probably not a laughing matter, I imagine that must be pretty annoying for the people affected.
I don't really have any OCD things like that, but I do have this odd thing where I find myself counting things or tracing geometric shapes in my mind. If I am anywhere where there's a geometric pattern, like a tiled floor, for example, I find my eyes are drawn around the edges, tracing all the routes around and between the shapes, back and fort, trying to get all possible routes. Sometimes I find myself doing it in my head when there are NO patterns around me and it becomes almost unbearable and I really have to concentrate to keep myself from doing it. It's like my brain gets stuck in a loop and really is horrible.
In my old house I used to have my cds all stacked up along a shelf like books and i could see them out of the corner of my eye when I was watching TV. Sometimes I'd find myself counting the top corner of each one, from right to left, then back again from left to right, and then I'd have to repeat that along all the bottom corners. I'd really have to be firm with myself to stop myself doing it, else i'd be there doing it all night. Ugh.
I do that sometimes if I can't sleep and it seems to help.