Exercise, anyone?

A few weeks ago my friends and I went to dinner. When we got off the subway, this is the staircase we encountered. The up escalator to the right was being repaired. Going up the stairs, I thought to myself, "I really ought to quit smoking." Thing is, I don't smoke, I just felt like I did. Little outta breath. Good exercise if you can get it. I haven't been back to that subway station all summer.