Another aspect would be for consideration of multiple, inexpensive, "Friday+1 Evening Specials" **GASP** scattered around the home.
This to address mobility issues faced by a growing proportion of seniors who can't reach a safe room (where they can access their defense and communications hardware) when suddenly facing an intruder induced situation. Much better to have the hardware come within easy reach upon need, rather than trying to outrace an athletic challenge by the zombie(s).
Or... CARRY IT (on you) before you are carried by six to the back forty!!
Not sure how this could be presented via imagery, but thought I'd give my impressions on yet another important but oft overlooked topic. Your eyes are wide open Oleg!