The night of Britain’s European Union referendum result was the worst moment of Bank of England Governor Mark Carney’s career and policy makers “absolutely” got their response right, he said. Answering questions from school children in Coventry, in the U.K.’s West Midlands, Carney said he felt a “tremendous responsibility” to keep the financial system functioning as it became clear that Britons had voted to quit the bloc on June 23. The governor said he napped for about two hours before going to the BOE’s Threadneedle Street headquarters in London at around 3:30 a.m. to help oversee its operations and coordination with central banks around the globe. “My reaction was to make sure that the big fat plan that we had was being put in place,” Carney said. “It’s our responsibility at the BOE to be prepared for these contingencies. The concern was really just about getting it right. It’s interesting, it’s exciting, it’s important and we did absolutely get it right.” The governor said a “huge number” of countries want to trade with the U.K. after it leaves the trading bloc and opportunities are “very large” with new technology enabling smaller firms to do more business overseas. In a wide-ranging session, he also revealed his childhood nicknames were “Carnage” and “Carnival,” that he likes confectionery bar, Dairy Milk and that his favorite film is Gallipoli.