Temporary case of PTSD? I could not find that one in the DSM.
Everything is PTSD today. Your local vegan restaurant being out of organic kale for your daily salad is enough to get it nowadays.
Bruised shoulder from an AR? From a 'few shots'? Smell of sulfur?
Was the guy mistaking a Brown Bess for a AR?
edit: He also talked about semi-auto and full-auto. Reading between the lines about the gun dealer he worked with(a police supplier, apparently), I'm willing to bet that he got to handle a 'police special' firearm that us proletariat can't get. Maybe this was made clear to him but didn't make it into the article, or maybe it wasn't, and he really thinks we can buy full-auto ARs from the local Wally-world.