Thanks for the feedback.
I have a 6" Colt Python for the "night gun", (can always use it as a club) with the first two chambers empty, next two with Glazer slugs and the final two with .38 ammo. I read that the idea of having the first two chambers empty is a decent margin of safety if the gun ends up in the wrong hands. Just have to remember that if you need to make use of it.
If an "unknown" were to come into a home in the middle of the night, the best non-lethal weapon would be the sound of the action of a pump shotgun, provided they knew what it sounded like.