The BLM sign is a craven message meaning ‘please don’t break my windows’.On Sunday afternoon I caught up with a mate for some riverside drinks on the Thames (The White Swan). I got the train to St Margarets and then walked down through the leafy streets lined with immaculate Edwardian semis - each £1.5-2.5 miilion each. Many of them had neat BLM signs in their windows, along with the obligatory NHS rainbow drawn by Jemima or Zeb at the nearby kindergarten (£1000 pcm 10-3, thanks). I can't help but think most would have an attack of the vapours if a person of colour was seen wandering down these streets and God Forbid! pressed the door bell.