Behind Bars

We went into town this morning, just to get out, and I needed to go to the library. After going separate ways we re-met for coffee.
I can find little to inspire photography in our drab  little town. so after coffee and cake (chocolate of course), I tried to make some sort of picture from what was in front of me.
I've just noticed that the top  isn't quite level although the vertlcals are  vertical.  Drat.