At least over 1k personally probably involved in a couple thousand initiated by others. Made a living as a floorwalker ( verbiage old dudes understand) while in college. Back then they allowed you to carry as well if certified. Couldn't get away with the chit we did back then.
Turned it into a 15 year career climbing the Target Corp ladder.
Well crap,
you had to go and remind me of when I was a boxboy (another one of those old folk's terms??) at a grocery store.
So, I guess I was involved in a "couple".
But, they wouldn't let me arm myself and there was one or two instances I wish I had been.