Many years ago my best friend and I hit the high street for a shopping session, when a strange feeling washed over me. “We’re going to see C*****,” I said, a boy who had been my high school sweetheart. Once the realisation came to me I was wracked with nerves and anticipation, vibrating with the certainty that it would happen. Shortly after, we bumped into him. “You must have known he was coming,” my friend said, disappointed he’d interrupted our shopping mission. But I really hadn’t known he was coming to town. That was a premonition that stuck with me.