Paul Kotz is one of those people who believes that a friend is just a "hello" away.
That's all it took. The latest episode in our special series "Life Lessons from Dr. Bob"
Mark Horvath is the founder of Invisible People. Armed with a digital camera and a smartphone, Mark lets homeless people talk about their own experiences. Today Mark is speaking with Michael and Danielle, who, along with their family of six children live in a weekly-rate hotel room near St Louis—a living situation just one step away from street homelessness.