One night, back when I lived in London, I was walking past a homeless man sleeping on a street corner. Suddenly, a mobile phone rang. Was it mine? Nope, it was his. I was reminded of this moment the other day here in Paris, when I passed a homeless man sitting in a doorway, drinking champagne. This is not mockery or social commentary of any kind, it's just an observation. And I must also add that both the phone and the champagne were far nicer than anything I could afford then or now.