This guy isn't fit to be a professional driver, wandering from lane to lane, using left-turn lanes to go straight on the slowing down and turning left without bothering to indicate total muppet.
If I'm in the fast lane on the motorway, it's because I'm overtaking, which I was in the process of doing.
Don't go flashing your lights at me to get me to move over when I have nowhere to go to. I'm sorry my 5mph over the speed limit wasn't fast enough for you also.
This guy is speeding and crashed