Forgetting that there is a live round in the gun is not a problem if you follow the safety rules and always assume the gun is loaded.
You know what, you can make all the safe gun rules you want. What you can't do is fix the stupidity of some people who are able and willing to own guns. Some will be safe, some won't. Depends on the level of fear that particular individual has. And their age.
Accidental deaths are just something that must be endured when you have a guaranteed right to own guns.
Cause you just can't fix the stupid gun owner. No laws will do it. No amount of training will do it. Only having one of your kids shoot themselves or someone else will do it. And that's not a sure thing.
Have you ever noticed that it is not usually the seasoned hunter that has the tragedy of an accidental death. It is usually those that only have a gun for personal protection. Why is that?