Around 7am on 1st Dec 2016 M11 southbound.
Vehicle pulled out in front of me from inside lane in heavy traffic without indicating and with around 3 metres to spare, causing me to brake heavily. I flashed him and he proceeded to slow down, I pulled into the outside lane and he repeated the manoeuvre.
Very dangerous and inconsiderate driving with little respect for either his own or other people's safety.
Chubby little thing peering over the steering wheel whilst thrashing their ten year old car around the Riverside Retail car park near Northampton.