Yes, I've been on the receiving end of one of those U-turns. As soon as I see a car behaving oddly my first thought is 'Taxi!'
IMO the problem in London is black cabs have protection through the Mayor who like Boris before him is shit scared of their lobby group, then if they don't get their way they blockade roads in Central London to demonstrate, bunch of cunts.

It makes me laugh, the socialist Mayor Khan bangs on morning, noon and night about pollution from vehicles, is extending the congestion charging zone in the future yet still allows some highly polluting black cabs to stay operating and sitting outside stations with their engines on, and they are congestion charge exempt unless that's changed at last. You couldn't make it up, it should be law that they must be ultra low emission or Electric same as any other form of cab should be. If the driver cant afford it that clears the road of another car.
I am not going overboard when I say in my area of Outer London when I go out in the early hours say to Asda every second car I see is a mini-cab as they have a sticker in the window as you may know, and often the same Vauxhall model of mini-cab. IF pollution is really what those in authority want to reduce then limiting cabs of all forms should already be happening. Also I see lots of drivers sitting in their cabs with the engines on waiting for a booking, yeah polluting all night as well as all day.
