“AS for home defense, get a Mossberg 500 12 gauge shotgun with a pistol grip. You don’t even have to aim very well to hit your target. When shot from the hip/waist, your wife will hardly notice the recoil.”
The Mosberg 500 is a great home defense weapon, but with the pistol grip, the recoil is painful. Even with the full stock installed, it give a good solid kick.
for some data on shotgun loads, spread, and sheetrock penetration, you might wish to check this site - it’s pretty fun.
http://www.theboxotruth.com/docs/bot3.htm
And no, Stevie Wonder does not cover a wall with shot - however, you might want to make sure the kids aren’t on the other side.