Before I had a dash cam, I had somebody at a stop sign just throw it in reverse and back right into me. I thought I was completely fucked, that they were going to say that I rear-ended them and I would have no recourse.

Luckily for me, they just gassed it and took off. They lost me at a roundabout when I had to wait for a box truck to go by in the night.

I now have a dash cam. No amount of defensive driving would have saved me if they were fraudsters.