Sounds like a great argument for the actor first receiving a gun where the hammer is not pulled back.
If you get the gun in a state where safety checks cannot be done safely, someone has fucked up.
It’s far better for the actor to know how to cock a hammer, have them go through the safety checks to make sure everything checks out, and then cock the hammer.
Basic gun safety involves handling guns as if they were loaded, so a gun should only be passed to someone without the hammer cocked and also with the safety on, because the gun will be assumed to be loaded by whoever receives it, and handing someone a gun that’s loaded with the hammer cocked is a monumentally stupid idea.