No need to have any training or testing whatsoever. Dare to question another man at the public range about his firearm safety protocol - they are free to do as they godddamn please!!!
Bullsh*t.
Your BS meter is broken Smokey. You should have been able to tell from the first part of my post (which you did not quote to give full context) that I was BS-ing:
"Men are born from the womb kowing everything there is know about firearms, firearms safety and shooting proficiency. It's in our DNA for chrissakes."