Nonsense, I could stop easily and I barely had to breathe on the brakes to wait behind that car. He could have too, but he chose to undertake the car. That sort of riding was quite consistant with what I'd seen from him up till then, so I would have expected him to undertake it anyway. That car had been indicating left since it stopped there, and the only reason it would be in that lane is to go left anyway since it's a left turn only lane.
I'd been behind him since New Cross, some 3 miles earlier, so I'd no idea he didn't know I was there. TBH I genuinely didn't expect him to get such a fright, and would have preferred to avoid giving him one, but that's easy to say with hindsight. I don't think I could have made any normal conversation or other noise without him jumping a mile, and that's because he was so unaware.
I do recall you posting about how you didn't like my use of POB back on C+ IIRC, and your excellent post back then convinced me I was wrong to use that term. Your posts on this topic however are totally out of line an rather unfair, and seem spiteful to me. I seem to recall you were a London RLJer, am I wrong?