I live on the second floor (as in the second floor above the ground floor...) and the stairwell in the building has a banister with a glass panel below it. Which is remarkbly uninteresting, except that it produced an interesting geometric frame around my reflection, which I sat on a step to capture on my way home. The marks on the wall are made by the tyres on my mountain bike when I fail to avoid bumping it into the walls whilst carrying it up or down the stairs... (a fairly rare occurence I might add), and the thing on my arm is an umbrella handle (a precautionary measure).