I used to get into awesome road-rage situations all the time. Had to drive away several times when people get out of their car with a weapon, once had a golf ball thrown right at my drivers door as I was driving off.
One time I was city-bound from south auckland on the motorway in the left-most lane when this chick behind me swerved out into the on-ramp and tried to skip ahead a dozen cars that way. I thought "fuck that, she's not getting away", and followed her, passed her using the shoulder lane, then sat on the breaks and forced her to go slower than every other lane, and always pre-empted her lane switching etc. One one of them, she actually tried to force herself into a gap in front of me and touched the side of my car... I got ahead of her again and reversed straight into her
That pissed her off something chronic, started making all sorts of wavey movements and using her phone. I evaded her at the next exit though and never saw her again. Good times..