Do you believe in ghosts? Joseph Barnett didn't until he became a school custodian in a midlife career change. Joe had no idea that his first assignment, working nights in a kindergarten school would force him to confront his darkest fears. "Ghosts are part of my story," says Joe. "I believe in them; I have no choice. After you've seen one ghost, you believe. I know what I saw and heard. Here's something else I know: there are many ways to be haunted, and not all of my ghosts were dead. That's the other part of my story. It took almost becoming a ghost myself for me to see my life differently. I believe in ghosts, and I believe in myself. But back when this all started, I was just a guy trying to make a living.