Does this count?
Everyone should know something like this can happen if the instructions arn't etched into the barrel for all to read. Here in California, everyone knows they are not responsible for what they do.
I'm not saying I loaded a 9mm cartridge in a 1911 chambered in 45acp. No no no. That wasn't me who loaded a 1911 chambered in 9mm with .380acp. either. Nope. Not me. That was somebody else. But...the shooter....well, he did hit the X ring at 7 yards. And immediately afterwards performed an exemplary tap-rack-bang drill and center punched the B27 a second time with a .380acp. cartridge before he, that's correct, he, discovered the error of his ways.