Mirror , mirror

I had to take a photo of this as the night before i fell down the stairs an landed on the first landing. Nothing unusual about that except that when i first put the mirror on the landing it was on the side where i came down to earth with a hell of a bang , and before you all jump to the wrong conclusion i was stone cold sober.Still dont know why i moved the mirror to the other side but in doing so i saved myself a visit to casualty or even worse .