At old street roundabout in London there are 2 lanes when approaching from central London towards east London. Both
lanes are for turning left, although you may go straight on or right from the right hand lane. The left hand lane is for turning left only.
Despite this strange design, it's quite clearly signposted that you can turn left from either lane. It's also written in both lanes, and has huge left turn arrows in both lanes.
Yet I stop at the lights one day, in the right hand lane, indicating left. And I see a lentil muncher wibbling through the stationary traffic on his pushbike to the head of the left hand lane queue. As he gets there the lights go amber and i move forward, but as he's slightly ahead of me, he just darts across (he's heading straight on) in front of my bonnet, without so much as a sideways glance.
So I give him a gentle toot on the horn and inform him (my window was open) that he's the sort of bloke who probably enjoys a bit of self abuse
and yet i got a barrage of abuse from said lentil muncher that he had right of way, and that I was in the wrong lane
Then he wibbled off trying to stick two fingers up at me behind his back. Which was actually quite amusing, in a school playground kind of way.
Yet I can guarantee
that If I'd knocked him off it would have been me up in front of the beak having to defend my driving.