I own a shotgun for home defense. Thankfully I have never had to use it. But my plan in the event of an intruder is to call out that I have a shot gun, a telephone and I know how to use both. The sound of racking a round into the chamber should act as quite the deterrent. Moving about my house with a shotgun in hand is not a clumsy act. And I hold sufficient fire power to stop any intruder.
I suggest some training.
Oh wait the people best suited to train you, you want to disarm.