Wow.
I saw that not too long ago and it still amazes me...this is a perfect example of why you don't stand in front of someone that is moving a vehicle, much like handing someone a firearm without checking it for first for ammo, empty chamber, magazine, de-cocked, etc.
This is also EXACTLY why I never turned my back on any drivers or trusted them the 31+ years I worked in the roadway on traffic signals.