I am old and at a loss at what a Mandalorian helmet is?
as far as seeing it all Daryl, I was RM at a range in socal for a few years. thought I had seen it all, including women in thongs shooting M60's while being filmed. I took my time shutting that down and didn't make many friends.
the best/worst was a car load of ms13 bangers with SKS's. firing pin on one stuck and the moron turned 180 with it still spraying. range house got shot up and he got a few of his buddies in the legs before i could get ahold of it. glad he turned starboard, the other direction would have involved some innocent family groups.