Whoa - nothing like stepping out of your building in the rain at 3 in the afternoon to realise that your flat’s entrance and half of your street has been turned into a crime scene overnight. Forensic people walking around dressed in astronauts, two blood-soaked sweatshirts on the pavement and the whole perimeter blocked.

‘Serious stabbing’, said the policeman. ‘Please give your name and address to leave and enter the scene. Did you hear anything last night?’.

Oh, great.