Some people really aren't worth you spending even a femtosecond more of your precious time remembering about their existence, let alone worrying about them and what they think.

Guy decides to overtake myself and the car behind me on a double yellow on a blind corner and almost hits an oncoming car while going way over the speed limit

I start laying on the horn after slowing down so the guy can get back in our lane and not kill the other person

I then turn to my employee seated next to me.

"Ahem. We're in a marked vehicle, never honk angrily at people."