I agree with the other poster to an extent who was concerned about that provision incriminating homeowners who go to the bedroom to get their gun, etc., but I don't think it applies because SYG per se is pretty much for use in public as I understand it. Self defense in your own home or business was always legal and the new provisions of SYG aren't required in those cases. In any case, if the law is restricted in that way, I'd have no problem with some explicit verbiage being added to make it clear those cases aren't the ones to which it applies.
“Self defense in your own home or business was always legal and the new provisions of SYG aren’t required in those cases.”
You’re right, SYG doesn’t apply. Within the home it’s called the “Castle Doctrine,” as in “an Englishman’s home is his castle.” No, it is not in all states and all instances assumed you have the right to protect your life and property against invaders. For instance, I remember a firestorm some time back against a man who rigged a shotgun to fire when the door to his shop was breached. Some potential robber got his head blown off, and people were angry at the owner instead of happy that another criminal got what he deserved.