People use shotguns for a wide range of uses, from home defense all the way to trap shooting. One thing all shotgun owners can agree on though is 8 rounds is simply not enough. Sure you can get a Saiga-12 and a high capacity drum, but that can cost upwards of 800 dollars. The solution is clear: spend 700 dollars to modify your existing Remington or Benelli to accept up to 30 rounds in a very interesting fashion. This is the XRAIL by RCI, and it's sweeping gun safes and duck blinds all around the world.
You may be thinking "sure it holds a lot of rounds, but isn't it too unwieldy and frontheavy?" Probably, but it isn't stopping these people from finally being able to dispatch more static clays than ever.
Let's be serious though: if those were 21 home intruders and not clay pigeons, you and your entire family would be dead. But that doesn't mean there isn't a shotgun for you: