My bedroom is at the end off a hallway. From there, I have a direct line of sight to the top of the stairs. Is there something I can put in the wall without having to brace the floor that will minimize over penetration? It is a 2x4 framed wall, and the living room behind it is about 15 feed wide, then an exterior wall. I would hate to be in a defensive use scenario and put my neighbors at risk.