...so little time.
I need to get to sleep, but there are people making purchase decisions, and basing their self defense plans on complete myths. Most specifically, that a shotgun does not need to be aimed, that simply aiming near the bad guy(s), and firing, a hail of pellets will fly out and turn his attacker(s) to hamburger.
The other myth is that a shotgun blast will strike your target and blow them up and out of a window, or through a wall.
A couple of factoids: Large men with much adipose tissue have survive plenty of shotgun close-range hits. The first time I fired a Remington 870 at a window well across the street in a Hogan's Alley, and the round hit dead center in the glass, leaving a hole that would be too tight to get a beer-can through, well, to say I was stunned wouldn't be quite enough to explain my literal jaw-dropping amazement. The window was in otherwise perfect shape, except for the hole I put in it.
So, what do I do? Well, I use chromium lead pellets in Double 00 Buck in mine, or slugs, and I AIM THE DAMN THING!!! Sights help.
Thus endeth the lesson.