So, I was just at my LGS browsing a bit after finishing up a practice session, and I notice that all 6 or 7 employees working have gathered behind a single counter. Then I notice that a group of 3 or 4 men on the other side of that counter are wearing bright blue and red uniforms with GREAT BRITAIN emblazoned across the back.
Turns out they were members of the UK's national shooting team.
The social dynamic of them complaining about having to travel outside the UK in order to practice thanks to their country's asinine gun laws combined with the gun store employees gleefully working their way up from 1911s to 1911s with Crimson Trace grips to AKs, AR15s, and SCARs along with the accompanying "Holy shit, you can own this?" going on was one of the more hilarious things I've witnessed recently.
Then one of the guys behind the counter pointed out the Armalite AR-50 .50 BMG on another counter to them.
I don't know that there's a more textbook definition of culture shock.