Horror. Enjoyed previously vile tube journey into work this morning. Suddenly realised that it was great to be overground, and that clanking past the back of town houses in their graffitied cladding reminded me of arriving in foreign cities in the early hours of the morning on some grumbly old train.

Not sure how this has bypassed me for the last four weeks. Not sure how long I will be charmed by it. Possibly until the next time some Hammersmith and City line driver decides to pop out of his cab for a cup of tea and leave me stranded for 20 minutes.