A bigger gun is more effective. Discuss this with her. A few shots from a small gun into a prowler's body may only make him angry, so that he harms the shooter before he dies.
Gun can kill you no matter how small they appear to be.
They lack Knockout Power, however. A man wounded by a ting gun may kill the shooter before he dies. A bigger gun will knock him out.
You mean "knockdown" power. And I don't care who you are, if you've been shot you can die. "knockdown" doesn't matter if you shoot someone in the face, neck, heart, or head. One shot is all it takes.
She just wants to get their attention!