Howie Mandel talks about making his first comedy special in 20 years, his childhood growing up in Toronto, and how the show Candid Camera inspired him to pull an elaborate prank that got him expelled form high school. He shares how "winging it" the first time he want on stage turned into his signature improvisational style, and how he still finds much of his comedic inspiration from interacting with his audience.  He recalls opening for Diana Ross in Vegas, his very first TONIGHT SHOW appearance, how the HBO YOUNG COMEDIANS SPECIAL changed his life, and the time when a sitcom audition led to his getting cast in the serious TV medical drama SAINT ELSEWHERE. Howie reveals why he originally turned down the offer to host DEAL OR NO DEAL and the anxiety he gets whenever he sees contestants making bad decisions on the show.  He opens up about his struggle with obsessive compulsive disorder, and how he went from fearing that it might be a career killer to using his fame to raise awareness of mental health issues.  Plus Howie Mandel gives the secret to winning the golden buzzer on AMERICA'S GOT TALENT. See omnystudio.com/listener for privacy information.