I saw him on a talk show and he told one of the funniest stories ever.
He was sitting in his LA mansion having coffee and reading the paper in the living room when the doorbell rang. He answers the door to see two late teen kids. He invites them in and tells them that his late teen son is upstairs in his bedroom. He goes back to reading the newspaper and enjoying his coffee. Several minutes later he is startled by a flash. He looks up and there is a person taking a photo of him. He looks around and other are over a dozen people milling around, looking at his collections, going through his stuff. He looks out the window and sees that a Hollywood tour bus is parked outside. It turns out that the two kids that rang the doorbell were not his son's friends but two kids on the tour bus that stopped at Ozzy's home as part of the tour. When he invited them in the entire bus crowd came in and was walking around his home while the Prince of Darkness had coffee and red the newspaper in his PJs.