Weighing in on the whole "staging" or "strategic placement" of firearms throughout the house thing, I disagree with the assertion that it is a universally unsafe practice, because the arguments against it are entirely reliant upon what-if scenarios including the presence of undisciplined children and/or the gunowner placing his firearms out in the open where anyone can see them and grab them with impunity.
Personally, I don't strategically place firearms throughout my home because it's easy enough to just carry my LCP with me everywhere I go, but if I were going to start strategically placing firearms throughout my home, then the average what-if scenarios used in arguments against the practice wouldn't apply to me because I don't have any children and don't intend on having any children. If I did have children then I would teach them not touch them the same why my parents taught me never to touch a firearm, by simply explaining that I could be hurt very badly or potentially be killed if I did. Seeing as most kids don't like even getting an itty-bitty splinter in their foot, explaining a bullet is much larger than a splinter and would pierce clean through the foot ought to be sufficient enough to convince kids not to play with guns, or at least it was enough for me to keep my hands off the loaded revolver my dad kept on the mantle.
Furthermore, I most certainly wouldn't leave them out in plain sight where an intruder could just as easily grab one and use it against me, but that's just common sense, and obviously arrogant fools who only consider their own narrow viewpoints to be valid/correct either intentionally overlook in order to strengthen their shallow arguments, or otherwise completely lack a working concept of common sense so they just automatically assume that whatever mistakes they would make are shared among others.