Ok, but it theoretically makes sense.
This is because, in your original statement you said that IF your family was in the car and he was riding your ass he would not have lived.
Well, your family was not in the car there either. So, what does it matter then?
So, same thing in Mensan's stated situation, just as you stated, your hypothetical family was in the car, and you made a stupid move.
You almost hypothetically killed your family. What a jerk.