Who were the players that had successful NHL careers after having drug habits? We all know about Bobby Probert and his battle with booze and alcohol. But what about the potheads? We know tons of guys that smoked cigarettes. Who were the big drug abusers throughout history that made it through the rigorous NHL? The only ones that jump out at me are Probert, McCarty, Belfour, and not much else is coming to mind right now. Gretzky maybe?