Whenever I’m walking up a subway staircase during rush hour, I look up and see a resigned throng. Bobbing heads, rounded shoulders, slow and steady like turtles. A lonely crowd trudging along in “mass man” formation. I want to run up the steps like a Marine with F. Lee Ermey barking cadence, but you can only go with the flow in Union Square. Bounding up a staircase two steps at a time is great for the spirit; walking like a coal miner one step at a time achieves an opposite effect.