your mistake is you "think" that you are sneakier than your attacker, and you "think" that it will be in your home and that you will HAVE that shotgun. also, have you ever FIRED a buck blast in the dark, in a small room? the concussion and blast are enough top make you nearly drop the gun, I am NOT bsing you. The flash will ruin your night vision, too. So you'd better NOT miss, the load better NOT fail to drop him (birdshot does so all the time) and he'd better not have a friend, or be wearing concealed armor or using cover. It's MUCH easier to use a light, a phone, use cover, open doors, look under beds, etc, with a pistol, too. So, as usual, the shotgun fan aint AWARE of all the facts.
I do night firing exercises and I have inadvertently fired indoors, I don't do that anymore. Yes I know my home lay out and advantage is mine. They are in the kitchen or dining room in order to get in the house and will be on a hardwood floor and back lit by the outside lights if they didn't kill the power. I am coming from a dark bedroom walking on carpet, advantage mine again.
I deliberately designed an open house plan with no hallways and large wheelchair friendly doors. My brother and sister are at the East end of the house I am in the middle of the house and can see kitchen which has a nightlight, out my patio door in my dining room which has a porch light on 24/7. Wooden wrap around porch and that is hard to walk quietly on. They have to get on the perch to reach the house doors.
All my defensive drills are against multiple targets randomly placed so I have had to learn to find, acquire the sight, shoot quickly and find the next target. If you shoot in real life like you practice than advantage mine.
Night blindness from muzzle blast out of a shotgun shooting 2 3/4" shells is highly over rated. Mag light will enable me to identify and locate them, their sight will be worse than mine. The sound of a shotgun blast with no protective gear will increase the already present ringing in my ears but from past experience I know that when the adrenaline is up auditory exclusion sets in and the surprised boogermen will be affected more than me because they won't be expecting it. Not my first time at a party but I hope never to go to that party again. I don't like body bags and if I never see another one filled it will be fine by me.
The big 'But', nobody but nobody messes with the welfare of my family.
Body armor does not help protect the head against head shots and that is my aiming point in my practice. I know the limitations of my chosen load.
Mep gas container smashed to half its diameter at 8 yards and penetrated by 4 pellets, soft skinned boogermen aren't that hardy where I live.
So, as usual, the shotgun fan aint AWARE of all the facts.
I have been shooting since 1958, went to Nam twice and shot at All Navy championships on active duty and All Army afterwards while in the Army Reserves. I coached the Navy and then the Army Reserve rifle and pistol teams and taught the police and Sheriff deputy rookies in Iowa and Lafayette County in Wisconsin.
I shot competitively Small bore rifle, High power rifle, long range rifle, bullseye pistol and international pistol, I think I have a pretty good grasp of how they work. If I choose the shotgun for my HD gun do you think I might have a compelling reason? What facts ain't I aware of?
One thing I learned a long ago, there is no single right answer and everybody has to evaluate their situation and decide how best to handle it. If you think you have the only right answer then you are blowing smoke because you have no clue to my capabilities or what my concerns are. If you care to enlighten me on the wrongness of my ways and you are up in my neck of the woods drop me a PM or E-mail and get my address, We can go on my range and you can teach me what I don't know, I am always ready to learn something new.