I was really tired Friday.  It was Friday.... so after doing stairs 3-4 times a day all week (8 flights each time, up and down), I told my friend, lets just take a walk in the parking garage instead.  So we skipped the first set.   The next time came around and she said "lets walk to Taco Time"   so we skipped stairs again and walked.  Later in the afternoon one of my coworkers came up to me and said "we haven't done stairs all day, noone has".  Now, we are not the "leader of the stairs, but our choice not do to them was enough that others decided not to do them either. It was kind of eye opening.  We did the last set of stairs, there were only 3 of us, but we did them.  Next week, we are not going to miss a flight, because what we do does impact others.