Pap in a strop who acts like a manchild when overtaken - floors it and drives unpredictably which is probably not all.
Also tailgates aggressively and mouths off at others with misuse of horn.
Aggressive driver followed me for 5 miles shouting abuse and driving as close to my bumper as possible. He got out of his car to attack me on two occasions but he was too slow on his feet. Cigarette smoking red faced beer drinker look about him.