Somebody needs to set up a simulation, where somebody is standing still and a vehicle to the right, reverses with left hand down and starting moving directly towards them. Wonder what any measured fear response would be.
If humans would be too aware of what was being tested, try it with animals, eg dogs or cats. That would settle the question of whether there would be a fear of being injured or killed.
Or better still, try it for real with one of the complaining Democrats as a test subject. Might need to be done a few thousand times with different test subjects.
