First and foremost get a front and rear view camera.  Review your own driving - most people, road ragers included, are completely unaware at how badly they drive. I haven't had anyone road rage at me and the few people I know who have had to deal with it don't tend to be the most courteous drivers themselves.  If you really are not at fault then definitely report to police and you'll have the video footage necessary to back you up and identify the vehicle. When drivers get away with bad behaviour they can tend to escalate over time. And finally, no matter how innocent you are, do not engage or retaliate. Be the better person.