huh?
I'm stopped at a red light. I put my car in "park" gear without turning off the motor. As he approaches
from behind I get out of the car, close the door (because if it is open it would be behind me, trapping me) and I take two steps back to stand at the front corner of the car. From this position, I can run around to the other side of the car (putting the car between us) or I can charge forward and attack.
There are other cars all around us waiting for the traffic light to turn green. I don't really care if it does turn green and if I'm blocking traffic and if the other motorists should start honking their horns. My focus is on my assailant. Their participation is in witnessing this guy get out of his car and come towards me, ostensibly to attack me. I hope he is aware and distracted and discouraged by their presence, even if only subliminally. They are all important factors in the process.