I go down to Southampton to visit a new friend, on a Friday evening, with no forewarning: her housemate says she is away for the weekend. I walk straight back to the station to go home. as if I have just popped by, rather than having spent two hours on the train. Two Southampton acquaintances are on the platform and ask why I am there. I make up some ornate but paper thin story to explain being on the up platform of Southampton at six o’clock on a Friday night when I don’t live there. They look at me warily.