A perfect example of this is the couple who's home was invaded by three men. She retrieved the handgun form the bedroom and shot it out with one of the guys. He taunted her during the fight and she eventually ran dry. After the first shots were fired, the guys stayed in the house, assaulting the husband, and one took a knee and waited for her to poke her head out but she came around the other side. They eventually fled and one of the bad guys died on the scene. The husband survived, but was close to death, IIRC.
Disclaimer - I don't typically read "Women Shooters", but this is the first that came up in a Google search on the story...
Women & Guns
Then there's the old marine at the restaurant or convenience store that had to reload his 1911 after fighting two bad guys. It's definitely not the norm, but it is becoming more common than before. These little gang bangers are out to kill just for an initiation to a gang in some instances. Others, they kill you for the heck of it. Again, it's not the norm, but it is on the rise and the chances are better everyday that it can happen to you. The chances are 100% that it will happen to numerous people in the US today.