I went out down the Thames in the dark, and had a puncture at 8pm near a back road that services a quite smart riverside development near Hammersmith Bridge. Fortunately there was a light a couple of feet off the pavement that marked the entrance to a private gateway, so I went to work. A friendly young guy who said he lived nearby asked me if I needed any help as I pumped up the front tyre after a bit of an epic struggle. I thanked him and told him I was just about sorted.
He came back with his track pump five minutes later as I worrying about a trapped tube, and wished me a good evening.