Choosing the Stairs

Watch what a group of engineers did, using fun to get people to use a long staircase with a moving escalator right next to it... At first no one took the stairs, almost 97% of the people took the escalator... Notice how engineers changed how people reacted to climbing a long stair case as first choice...66% more people took the stairs...

http://www.youtube.com/watch?v=2lXh2n0aPyw