I keep one of those .38 Police Specials by the door after jamming up a semi-auto with an improperly rammed home magazine while in a hurry to break up a cougar/ dog confrontation. I like the way a revolver left stashed year after year will always work in a stressful situation. A wheelgun is as reliable as a rock while the jammed semi-auto was as useful as a rock.
Revolver's first two cylinders have snake shot for slithering things, warning shots and less damage from an accidental discharge.
P.S. - by the time I cleared the jam the moment of crisis was over and my dog O.K, cougar fleeing and clawed up mule deer limping off in other direction.