Some guy called Darmody bet on three horses to come in the top four in the National. They finished first, second and third. He knew this was good, but he didn't know how good. The BBC picks up the story: 'Mr Darmody telephoned a friend, who he said knew more about gambling. He told him he believed Mr Darmody had won something between £50 and £100,000.' That's what I call expertise.
(Mr Darmody had won £65,000, so it's not like the guy was wrong.)