I think most people end up in box junctions after slighty encroaching, panicking, banking on the traffic ahead moving off and moving deeper into the box junction and then realising you're fúcking stuck there. Fairly easily done, in my experience.
Oh and just because I've responded to you in a civil way, do not think I've forgotten our earlier conversation in which you were not only wrong, but also a proper dick about it.
The problem with box junctions is that they take zero account of human nature. A law abiding citizen will wait until their exit from the box junction is clear, but while he is moving forward into the available space, some cünt will switch lanes in front of him and leave him stranded in the box junction.
Naturally, such people deserve crucifixion.
Ok, digging up my old post was a nifty move, I grant you. But I don't think it was the zinger he (or you) like to believe. I am, after all, notorious for being a major drama queen prone to absurd hyperbole and it's no surprise to find me in just such a frenzy at a time when Spurs were in with a shout of winning the league.