I haven't got any OCD annoyances or quirks but over the past couple of months I have recognised me doing something and it's all because twice I have gone to my car and it's been open and twice I have left my lights on and flattened the battery.
When I get out of the car in the morning and at dinnertime, I walk about 50 yards, turn round and go back to try my door and check the lights.
Because it was getting on my nerves I decided to do something about it this week with a very simple solution.
When I lock my door and try it I say to myself 'I have locked my door' and then I look at the lights and say 'My lights are definitely off' and then I walk off without turning around or worrying.
I can certainly see how some people can get this way.