Traffic in London. Bloody hell. I mean I know it's normally bad, but this was ridiculous. Everywhere was basically gridlocked, cars jammed solid and cyclists, mopeds and motorbikes trying to find their way through the tiny gaps. Junctions were full of cars stranded on all the traffic light cycles, a complete mess. Took me about 90 mins to do 5-6 miles via a 15 min bike shop stop.
It was pretty harrowing actually - ended up making a few rash decisions myself and almost got taken out by a moped (when I was being careful).