After young Grayson I tootled along to the Tate Modern to see the Tacita Dean installation in the Turbine Hall. It was a lovely day, sun shing, crisp and bright, river all ashimmer, however I had been tootling for some hours and rapidly running out of steam.
Finally took my courage to the sticking point and hailed a taxi so that I would get back to the station on time for train.
I guess it was the right thing to do as I would probably have washed up in the next tide if I had tried to walk back to Embankment Tube station, but even tho there are bus/taxi lanes there are also Road Works, cost me £15 to sit in the middle of them for what seemed like hours.
Finally jumped out and ran the last 50 yards.