Let's say your at home, watching wrestling on the TV and suddenly, you realize some bad hombre has snuck past Ol' Blue, broken into your mobile home and is coming after you with a Taser, intent on finding out where you keep your prize collectible Cheetos.
Now, he's got that Taser so that means you can't close with him and give him a good Judy-chop. All you got left between you and the horror of losing your prize Cheetos (the crown jewel of the collection being the one that looks like General Lee) is the Mosin leaning against the wall near your lounge chair.
Only thing to do is grab your faithful Karate Rifle deploy the bayonet and use it to keep the Cheeto Burglar away until you can wrestle the bolt open, chamber a round and shoot. If you miss, continue stabbing at that Bad Hombre until you can fumble another round into the chamber or Ol' Blue magnets in to see what the ruckus is about and if your lucky, bites that Bad Hombre on the tucass