When I was living on my campervan last year I liked to visit a different place every day, speak to its people, get its vibe. In one particular small town I found the vibe to be insular, wary, suspicious. And I wondered if this xenophobia was a backlash of Brexit. For example in one small town I spotted a sign saying there was a Secret Bunker. My interest was piqued, so on London Road I stopped a man and said, “Excuse me, where is the Secret Bunker?” “I’m not telling you,” he said.