Sorry, if someone is inside my home uninvited, and with no good reason for being there, I take that as a threat they are trying to do me harm. I am not about to balance the situation 50/50, rather tip the scale in my favor of having a positive outcome for me. #8 birdshot moves me closer to that equilibrium than I'm comfortable with. Big round lead balls buried deep enough to cause massive internal damage and reduce the liklihood that the guest doesn't continue to pose a threat to me is my choice. Not worried about overpenetration as before I head out to greet my visitor, my wife is safely in our bedroom walk-in closet behind the 1/4" steel plates that line the inside 8' up the walls and is calling the calvary. No one else in my home most times, except when my son comes to visit. I will toss him one of my other boom sticks as we both go out to ensure we don't get hurt and they have to use a shop-vac to escort the intruder out. Incidentally, 12 pellet 00 Buck out of my 14" cylinder bore barreled 870 at 20-25', is about a 5-6" spread. Plenty.