I suggest that you contact Dr. Suzanna Hupp, who survived a mass shooting at Lubys in Killeen, TX, though she watched both of her parents murdered. She followed TX laws, which allowed her to carry a handgun in her car, but not on her person. So she was unarmed and unable to do anything to protect herself or her parents.
"Playing possum" doesn't work too well when the goblin is walking around the bodies, "making sure" by shooting them in the head, even if they weren't moving.
Mark
The law against carrying was developed to stop dueling, I think. In the old south—I mean before World War II—men took personal insults to heart. Which is why Southern men are more polite than Northerners ;-)