I couldn’t seem to shake this man off. At one point we were sharing a London taxi over Deptford Bridge in the 1990s. Then we were walking through a Liberty-style mock Tudor shopping mall. It was here that I saw two small children outside a newsagent bobbing up and down as if they were in a space capsule. I was curious but too embarrassed to ask questions.

Eventually I arrived home and my share of the taxi ride was £20. I stared out of my bedroom window, craning my neck to the left and for the first time realised that I had lived very close to a Bakerloo line tube station (‘Waterloo North’) for many years without realising it.