‘Anyone who tells me they can’t be conned? They’re the easiest ones you can con.’ So says Sal ‘the Hitman’ Piacente, who showed off his favorite card cheating moves to the Guardian and at a recent event sponsored by Atlas Obscura. He and his wife, Dee, own and operate a company to advise casinos and private venues around the world on how to protect themselves against card cheaters, and how to catch them