Hey, if I'd had a gun when my neighbor's dog jumped the fence and bit my dog, my dog would have gotten a few less teeth marks. I'll stop the attack on me and my own whether the perpetrator or victim is human or not. That said, I wouldn't have swept my neighbor.
That said, just because we talk about being responsible when carrying doesn't mean all folks who carry are responsible, or even that when heated we will act responsibly. Although people who do carrry, even without training, are still probably going to weigh potentially needing the gun if they get into a fistfight, and may get into less altercations. However, if someone wants to cause harm to another human being, they can do so with or without a firearm.
That said, just because we talk about being responsible when carrying doesn't mean all folks who carry are responsible, or even that when heated we will act responsibly. Although people who do carrry, even without training, are still probably going to weigh potentially needing the gun if they get into a fistfight, and may get into less altercations. However, if someone wants to cause harm to another human being, they can do so with or without a firearm.