I have been completely calm on the outside yet freaking out on the inside and made excuses to leave so that really isn’t a tell for PTSD or not. I haven’t watched video of the event and I’m not saying the shitbag wouldn’t use it as an excuse to get out of hard questions, I’m just saying with my personal experiences being shot at that giving excuses to get out of what you think is a dangerous situation (but really isn’t) is a classic sign of PTSD.