Originally Posted by
crispy010
Braking is not the correct response in this hypothetical situation. The correct response is to go to one side or the other of the car that just slammed on their brakes. When you do this, it is very important to not touch your brakes. If you slam on your brakes and try to do this, you can roll your car, especially one with a higher COG. Avoid, don't brake.
That's all well and good, but never assume that the person you just brake-checked is going to know how to avoid hitting you.