In a further proof of point, looking at my childhood home from a military standpoint, the top of the stairs represents the "fatal funnel" and is the most logical place to defend.
As stated earlier in the thread, downstairs they are just a danger to the tv and Mom's lighthouse collection, upstairs they represent a threat to the family.
NRA Life Member
Big Sister: "Everyone in America is fine with the .30-30, except Mack. He has to shoot that .35 because that extra point zero fives inches will matter on Bigfoot."