This happened to the wife. The sweet fellow didn’t bother to say sorry. I guess they didn’t even realise that did something wrong. It was a low speed event and so no harm was done. But had it been a high speed event the Dash Cam footage would have been invaluable to help with insurance and also to track down the offending car.
As I write this I’m also looking at the man ( woman ) in the mirror. We all have to practice Road Courtesy to make it safe for other road users.