People don't make much sense. I'm mad cause that guy is tailgating me and that's dangerous cause he might hit me. Too many people's response is to suddenly hit the brakes which increases the probability that he will hit you, the outcome you didn't want.
My "Brake Check" consists of using my left foot to touch the brake pedal just enough to flash the brake light but I don't slow down because my gas is still being pushed. Tailgater slams his brakes and it's all on him what he causes behind his car. Key is also to remain calm.
This is learned from spending half my actual life in L.A. traffic.
I hate tailgaters.