I used to work at a gun store/ range here in the Houston area. I would police the range sometimes. Saw some pretty goofy stuff.
One time we had a guy rent a handgun and blast away on the firing line. When he was done, he proceeded to walk out of the range with this loaded handgun. He pointed it at the wall on the other side of the shop, exclaimed "So I'm from California and...", before he could finish his sentence he fired a round off in the shop where we all had no hearing protection. The round came within inches of another guy that worked there's head. Guns were drawn and the guy was removed from the property.
For the longest time, that gun store had a sign with an arrow pointing at that bullet hole on the wall. It read, don't be an idiot.
Not trying to pass shade on someone from California by the way. That is just genuinely what the guy said before nearly killing my co-worker.