These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Crazies
What an Idiot: Scotty runs, without bothering to ID himself or listen to the soldiers' (rather reasonable and clear) commands, towards his mother while screaming and flailing his arms. Predictably, he's shot. This is supposed to be a Moral Event Horizon for the soldiers.
Actually, it's kind of supposed to show how out of hand the situation is getting, and how everyone regardless of sides is blinded by fear. Which it does.