The Fun Theory Posted on October 9, 2009September 2, 2018 by Sandra “We believe that the easiest way to change people’s behaviour for the better is by making it fun to do. We call it The fun theory.” Check out this video – they transform a set of stairs next to an escalator into piano keys! Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)