I know there are some people reading this saying, "I will NEVER touch a gun. Guns are disgusting. I want them all burned by 2019." Opinions aside on guns, you're stupid if you don't learn how to handle one. You never know when you'll need to use one in an emergency situation, or hell, maybe you'll be in a position where you're with someone handling a firearm. Wouldn't you rather know if they were using the gun properly or not? The rules are pretty simple, and many gun owners follow them, but there's plenty of idiots out there breaking these basic rules.
Actors need to learn simple tasks like this. You ever watch an alleged special forces agent who can't even hold a gun, or worse, is putting people in danger just by their ignorance? That's not a character tick, that's just ignorant acting.