I was driving home today with DD in the car, I had a goods truck for a well known department store right up my arse to the point if I had stopped suddenly then I feared they'd have gone into the back of me and crushed the car (there was a truck in front of me). They then started flashing me, I assume wanting me to get out of the way. We were in the middle lane, I couldn't get into the left as that takes you to a slip road off and he could have overtaken me in the right hand lane.
I am able to get into the left lane after the next junction and I then see them get quite close to a truck in front.
WIBU to report him to his employer?