There can be hesitation in applying the brakes as well trying to remember which of your cars is front wheel drive or rear wheel drive. When you go into a spinout on ice, you'd better not cut the wheel in the wrong direction when you hit the brakes.
The problem is even more compounded when you are in a rental or otherwise borrowed car.
exactly right. the black box can show all of that - your speed, when you brake, if you veered, in which direction you veered, etc - so unless you had perfect car control, you can be convicted of manslaughter (as an example) based on the data. its crazy.