Staircase - Bradford Interchange

I usually struggle a bit for photographic inspiration at this time of year, it's cold, wet and dark all day, and the summer seems a long, long way off. I'm not down to taking pictures of my sandwiches yet, but I do find myself taking pictures that I wouldn't normally take. This staircase at Bradford Interchange (a combined bus and rail station) is one of them. I attracted the attention of a Security guard while I was taking this picture. I did try to explain what I was doing, but it didn't sound very plausible, not even to me, the poor chap looked perplexed. When I said I intended to crop the picture a little and convert it to black and white he looked even more perplexed, different worlds, I suppose.