Emotions get people to change their behavior. In his show Crowd Control, Dan Pink tried to get people to stop illegally using handicapped parking spots. When Dan’s team changed the handicapped signs so they has a picture of a person in a wheelchair on them, illegal parking in the spots didn’t go down — it topped altogether. Seeing a person’s face, thinking about how someone else might feel, made all the difference.
Excerpt from: Barking Up the Wrong Tree by Eric Barker