In 2010, auto manufacturers recalled a staggering 20 million cars in the US for various defects. The thought of such a large number of defective cars on the road is startling enough. But what is more disturbing is the apathy of some owners. In one instance, the executive director of the Center for Auto Safety warned owners, “It’s a free repair. Get it done. It may save your life.” Yet, despite the risk to their own lives, 30 percent never responded.