By Bernadette Duncan Author/Professor/Former Radio Producer (EDITOR’S NOTE: The following is an excerpt from Bernadette Duncan’s classic talk radio book about her 26-year career as a major market and national radio producer, Yappy Days: Behind the Scenes with Newsers, Schmoozers, Boozers and Losers (Talkers Books, 2016). It appears in the chapter titled, “Guests Who Are…