I heard this story on a Paul Harvey broadcast. A woman, worried about crime, started to carry a hand-gun. Five months after she'd begun carrying her gun she came out to her car in a dark parking lot and found it occupied by four men. She ordered them out. They refused to move; she pulled her gun. Instantly four doors popped open and her car's occupants fled into the night. Then, as she started to load her groceries into the car, she noticed her car (same make and model) parked three spots away.
(From the "Rest" of RHF)