Yes it does, no prior knowledge of circumstance is assumed.<quoted text>
A passenger's prior knowledge of the glass has nothing to do with it. However when they saw the glass was struck only once and it didn't do anything, they wouldn't be in any danger and would have no reason to shoot to kill as a response to it
The reasonable man does not see toughened glass, he sees glass in the same way the reasonable man does not see an unloaded weapon pointed at them when they pull the trigger in aprehension of their death or serious physical injury.
You are even less than clueless.