"Dr. Phil McGraw <a href=""http://www.businesspundit.com/10-millionaires-who-lived-on-the-streets/"" target=""_blank"">reportedly</a> lived in a car with his father as a youngster while his dad interned as a psychologist. ""I cherish those memories,"" McGraw said. ""That was my time to learn how to deal with stress and adversity, lessons I'd never have learned any other way at that age."""