Windows and sunroof keep rolling themselves down on their own, often.
My father has a 2003 Cooper S (USA if that matters). The other morning his battery was dead, which I'm assuming was from him leaving a light on in the car. When I went out to jump the car for him both windows were down and the sunroof was open. I rolled them back up, plugged in the battery charger and went back in.
Not long after I walked out to check on the charging status and I saw the windows all roll down automatically, along with the sunroof. I didn't hit any button on the keys, all I did was open the rear hatch.
Now his windows and sunroof are constantly opening themselves at random times. All day, all night.
Does he need a new battery? Did some module get fried? Is there anywhere I should be looking for damage/moisture?