When I completed safety training at a mine site the teacher began with “everything on this list has happened” & then told us no fistfights, no stealing, no making threats, no bringing weapons to work - for that he specified “that means no knives, guns, or brass knuckles.”
I suppose there are people out there who take this training and say "I had no idea ...". I may not be the target demographic that they're really trying to reach.