Nearly got wiped out by someone deciding to turn right into a side road without using their mirrors or indicating.
Filtering past stationary/crawling pace traffic down the middle of the road in quite a wide cross-hatching area. I'm usually fairly cautious when filtering, i make sure my speed is appropriate to the width of the road and oncoming traffic and side roads etc. If someone indicates right I will hang back until I can undertake them on the left and I'm careful when going past junctions used as ratruns.
Was free-wheeling slightly downhill but probably only going 15mph tops because looking ahead to the next pinch point which was blocked by traffic. I know the side roads which drivers try to use as a shortcut to beat the lights and this wasn't one of them. Suddenly I see this car which was in line with a side road just as I was starting to pass it turn its front wheels full lock right without indicating and start accelerating to make the turn in front of an oncoming car.
Even with two annoyingly bright flashing front lights he/she just hadn't seen me, they clearly hadn't bothered to look. Somehow while shouting at the top my voice I managed to scrub off enough speed to make a super sharp turn into the side road at the same time as the car and somehow avoid going over the bonnet of the car or falling off my bike.
If I had been going any faster or the road was narrower or I had reacted slower I might not have been so lucky, so a lesson to be cautious and always alert when filtering past slow moving traffic because some motorists are entirely incompetent.