Walking to my preferred spot on the eastbound platform at Wood Lane, the place where the driver's cab stops if you're interested, I spotted another late evening commuter who set off my deja vu alarm (silent, of course).

Where, exactly have I seen this person before? Part of me thinks she's famous, or close enough to pass for someone who actually is, whilst the other angel billing and cooing into my ear, says no, you've met her, but where?

London, the city where a chance encounter of less duration than a raindrop hitting the ground, becomes a puzzle to last through the night.