Motorists who rarely drive in town will be unaware of the chaos that innocent pedestrians cause in icy conditions by walking out into the road in front of cars that are doing the best to simply keep moving.
Unable to cope with this added complication to stop-start urban motoring, I re-routed further south to get to work today. I pulled in to take a photo on the way.
I've don't have much truck with the hysteria over the snow falls in the south-east, but we're not being soft southern fairies, guys, this is proper snow.
OK, there's no drifting - well, not in the topological sense - which is the biggest problem in the real countryside, but it's fair to say that as I moved out of central London I regarded any driving a Golf as commendably ambitious, and anyone in a BMW as fair game for a hotel room.
I was doing very well in my Toyota, carving a path through the lanes, until I came to a fallen tree. It had already stopped the four-wheel-drive tractor and the snow-plough before me, so I admitted defeat, turned round and headed home.
Wish me luck for tomorrow.