We can't cc here in the "Peoples Republic of Illinois" but if I could I'd go with a .38 snub. I small revolver is safe, light anbdfull proof. It also needs a deliberate pull of the trigger to go bang. I'd like it to be a +P capable revolver but if not that's ok too. I really like the look of the new Ruger LCR revolver and I might just pick that up. For now I keep a S&W pre model 36 snubin my lock box by the bed because I know my wife can shoot it well and she doesn't need to worry about racking a slide or taking it off safety or accidentally discharging due to all the adrenalin and so forth. All she needs to do is identify her target and pull the trigger....it will go bang.