We can't worry about that when considering how to protect our homes and families. What we need to worry about is whether or not we're adequately prepared for a real world assault from a home invasion. That is as much a matter of mindset as it is a matter of weapons. Criminals who break into your home when they know you are at home are the most dangerous, because they have a reasonable expectation of being confronted, yet despite that, they are confident that they will profit from the adventure and escape without injury. Considering that mindset, its reasonable to assume they are prepared to use weapons and violence to accomplish their goals. They are unlikely to be driven off by a force of character alone, thus a physical confrontation must be considered. A defensive weapon which allows us to strike a decisive blow from a distance is desirable. There are few tools at our disposal that allow us to strike a blow from a distance, but there is one that can not only can strike a blow from a distance, but also strikes a blow out of proportion to our physical prowess. That tool is a firearm. Regardless of the firearm chosen, its desirable that shooting resolves the situation with the least number of rounds fired. Its not a question of whats best for killing a violent protagonist, the question is whats best to make him stop doing something that if not stopped, will end in the death of yourself or a loved one. This is where the shotgun and its broad selection of ammunition types comes into its own. Ad libing Clint Smith, "A rifle bullet makes a little hole going in, and a little bigger hole coming out, a pistol makes a little hole going in and sometimes doesn't even come out, but the one redeeming feature of the shotgun is that it removes bone and meat. He won't be wondering if he got hit or not, it makes a mark and its a big one! And I'm not talking about a 3" magnum buckshot load, I'm talking about a #7.5 skeet load."