As I've told my son about one of his friends. Some people don't seem to have any filters anymore. I followed a girl one time in my youth and told her to get out of her car and discuss the problem like a grown up. She was about my age. She was embarrassed and apologized. I think it's because we live in anonymity. We don't know them so we aren't important enough to them to filter what they say/do.
A few months ago, my DIL waited at a stop sign a little too long (she was probably on the phone..another peeve). The woman behind her honked and then backed up and rammed her from behind. Twice!!! Then left the scene of the"accident." My DIL was so frazzled she didn't get the license number. She was trying to make sure my grandson was okay.