Agreed. "Why should I be defenseless when following the law, when the badguy who wants to hurt me doesn't give a damn about the law?"
Also, take into account that said BG is quite probably a repeat offender, and not supposed to have a gun in the first place? You don't necessarily have to be a "trained professional" to know how to safely use/handle a firearm. SC, at least, you have to take a class to get your carry permit. You may not be a "professional", but you're most definitely trained.