The Elevator Repairman
From my desk in my office I look into the elevator shaft of the building across the street. And every day, when I look out the window, I see a bucket on top of the elevator left by whoever repaired it a couple years ago. It rides up and down all day long, year after year. A bucket misplaced by the repair person, forgot about by everyone in the world but me. Also, on the top floor of the same building, whoever painted the walls didn't bother getting the parts around the exterior of the windows, which are impossible to see if you're in that building. I sometimes sit at my desk pondering these two things that only I see, and then I think I should probably be working harder.