Or get a camera, record the next incident, submit to police and then relax in the smug knowledge that (s)he'll hopefully get a NIP/fine/points for shit driving.
This is what I've actually been doing. My knuckles are thanking me.
Camera the fuck up. When they get fined or fucked on their next insurance bill, they might actually have a little thinkie about their driving. Hit pockets, not panels.
Or get a camera, record the next incident, submit to police and then relax in the smug knowledge that (s)he'll hopefully get a NIP/fine/points for shit driving.