1/ Take a note of their licence plate.
2/ Get their name and address from the post office
3/ Fill in a change of ownership form for their vehicle
4/ Call the cops and say you're car has been stolen and was last seen cutting up a motorbike on the _______ road.
Job done.
Seriously though unless you have witnesses who will also testify then it's your word against theirs. In the case of an actual physical contact they could be charged with fleeing the scene of an accident. It can make you feel better to make a gesture but that can often inflame the situation - they are in a ton and a half of metal (aren't they brave) and you are vulnerable to them having a 'moment' where they lose control. I recently nearly got hit from behind by someone in a burgundy holden who shouted something as he drove past - I had my L plate on and shouted back "What?" at which point he slams on the brakes, turns the car around and starts chasing me around Auckland - I wouldn't have minded so much but I'd only been riding for 2 days!
Just seems to be something in the kiwi psyche though - I met loads of New Zealanders when I worked in London and found them to be lovely, polite people (hence I decided to move here) but once behind a steering wheel many transform into homicidal maniacs...is there a reason for this?
In space, no one can smell your fart.
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