White male, early 20's with baseball cap, speeding along A41 from M25 north towards tring at approx 09:45hrs on 25 June 2018, tailgating, undercutting, and then decided to undercut me at last minute whilst he realised he needed to turn off (actually last second). Of course it was my fault [not]
Then proceeded with aggressive abrupt stops towards Chesham, the fingers and threats to pull over, whilst constantly looking down at phone, driving erractic.
Grade A oxygen thief whom probably doesn't have a licence, using daddies car (or stole it), and late for his drug deal.
Undertaking dickhead