When I was living in the bay area of California I had a guy come off the line, sit next to me on the park bench, turn his pistol right at me and start to "clear" it. The icy stare of death coupled with my "just !#@$#$@$#@ do you think you're doing" got the point across.
In southern California I watched some asian gang bangers convince the sole girl in the party to shoot what appeared to be a 1911 they had with them. She limp wristed it horribly the first shot, wildly cracked off a second without having control of the gun and then literally threw it at the bench cocked and loaded. It spun once and swept the entire line including themselves!!!! These guys were also completely missing a man sized silhouette target at 5 yards!!!
