I am torn. Coz on the one hand I wouldn't want to be responsible for a man getting the sack, but on the other hand, why should he get away with driving like a tit.
I have driven down the M6, from the Stoke/Stafford region to Birmingham NEC/airport many a time in the past, (going to concerts and shows and to the airport.) And every fecking time, I get lorry drivers on my arse in the middle lane, trying to shove me along, and make me go faster. But I can't coz there's too much traffic in front (and at the sides!) It is very intimidating, and scary.
Nah feck it, report him! (to his employer,.) The more people report these twits, the less they will do it - eventually!
Not sure about 101 though. Someone I know rang them a couple of months ago, because a man 'apparently' deliberately ran into her with his trolley in Tesco's, and 'hurt her hand.' (No marks or scratches were anywhere to be seen!)
The call handler told her off for wasting their time, and said this number is for CRIMES - albeit non-emergency ones - not for ridiculous petty scuffles in the supermarket, that resulted from 2 people not looking where they were going, and where no-one was even remotely hurt!
So do be careful if you ring 101. It's for crimes, not for a reporting a lorry driver driving too close to your bumper, you not being able to prove it, and no-one coming to any harm.