Basically I went for a bath and when I was undressing I took my cardigan off and put it on the radiator. After say an hour in the bath (I tend to take long baths) I got out and before I finished dressing back into my clothes I noticed my cardigan was buttoned up again. I know for certain I didn't unbutton it and then button it up again, I see no sense in that really and I was wondering if there's any other explanations. In my mind it could have been a playful spirit, but I don't want to jump to conclusions.