VW's piano theme is out of tune with 'elfnsafety'

摘要

A campaign by Volkswagen of Sweden has been creating ripples on YouTube in recent months. Based around a website called Thefuntheory.com, it's based on the premise that something that's fun is the easiest way to change people's behaviour for the better. An early example turned a staircase into a piano, with a video showing most people choosing to use the stairs rather than an adjoining escalator.