You may not be familiar with the time-sweepers. The time-sweepers are the people who sweep up all the time that is lost and wasted. You cannot see them, though if you are in the railway station and think you see something out of the corner of your eye, that will probably be a time-sweeper, cleaning up around the bench you are sitting on. If you were to see them, you would find a small, bluish person with an intent expression, clutching a broom and a mop. The men wear overalls, the women old-fashioned tweed skirts and scarves on their head.