If my character was attacked by an armed member of a group and shoots them unfatally (she had surprise on her side) would it be considered beyond self defense if she broke the attacker’s legs so that he wouldn’t be able to get back up and try to kill again? She also applies her idea of first aid- clean the bullet wound, pour bathroom alcohol on it, and tape gause over it- and gives him a painkiller (not the smartest move, but she is a teen who normally wouldn’t hurt a spider).
So, there’s problems here.
First, she needs to know how to break someone’s leg. Being able to so efficiently and effectively is somewhat specialized information. In general, human legs are fairly sturdy. They can break, yes, but they don’t under most normal circumstances. Once you’ve learned joint breaks they’re fairly simple on a technical level. Breaking the bone itself is possible, but takes far more force, and as a result is fairly advanced.
It’s certainly possible to break someone’s leg, but knowing how to do so requires a prior commitment to violence that an untrained fighter is unlikely to posses.
Easiest way would be to use the gun, or a crowbar, claw hammer, or other large blunt object to kneecap him. Most people can probably figure those out. But that’s a pretty horrific act, when you think about it.
If she knows how, then she needs to be willing to do so. This may sound like a minor step, but it’s a significant hurdle. It’s one thing to react to a violent situation without thinking and cause harm act. Looking at a defeated foe and deciding to inflict additional harm is something entirely different. That requires a kind of emotional detachment that most, generally well -adjusted, individuals won’t have.
So, your pacifist who has no history of violence ambushes someone, shoot them in the back and then tools them up with a crowbar, before abandoning them in a gas station toilet? You see where this is, maybe, a bit of a disconnect.
Thing is, legitimately, she might consider killing him. Not necessarily be willing to carry it out, but she’s got a gun, there’s only about four pounds of pressure between her and putting a bullet through his head; making sure he never kills anyone else. Ironically, this is an easier threshold for her to cross. Taking this guy’s legs apart is going to require a serious commitment. In contrast, pulling the trigger is much easier. It’s momentary, instead of a protracted act of sadism.
To be clear, neither of these are morally good. They’re both deeply messed up, and at best, “ethically challenging.” Executing a fallen foe because they might come back for you later or because they may seek to harm someone else is horrific. But it’s still an easier action that looking for a tool you don’t have, and maiming someone.
Worth noting that none of this is going to qualify as self-defense. Shooting the guy the first time might qualify, depending on the circumstances, but given that she ambushed him, probably not. Self-defense requires an immediate threat to her life. Even just brandishing a gun is illegal in many circumstances. If he was about to kill her or someone else, then shooting him may be reasonable, but if he was simply threatening her, or picking up groceries, then that’s not justifiable.
If your character starts mutilating their attacker, then that character becomes the victim, and your protagonist becomes the aggressor in the eyes of anyone who examines the scene.
Something I know I’ve said before, shooting to wound isn’t a thing. There is no, “safe,” gunshot wound, and no way to safely incapacitate someone with a gun. These are tools designed to remove other living beings from this plane of existence, and they don’t really go in for half measures on that subject.
I say this because gauze won’t do the job. Bullets, when they punch through soft tissue, tear things apart, they result in bleeding. Without medical treatment, they will kill you. You need to stop the bleeding. Pouring some alcohol over the wound, and slapping some gauze on the surface won’t cut it.
So your attacker hasn’t died, yet. Without medical care, they will die. There’s a simple threshold here: if the gunshot isn’t enough to put them down, then they might live through it. If the blood loss is enough to incapacitate them, it will kill them. They won’t be getting back up to chase after your character. Anything your character does to their attacker will be viewed as torture. That won’t play well when someone finds the body, especially if it’s the cops. Bandaging the wound might slow the bleeding some, and buy them some time, but, it’s not going to be the difference between living and dead. It’ll be the difference between dead in 30 minutes and 40 or 50. If she put him down with one shot, my unprofessional estimation puts his bleed out time somewhere between 300 and 600 seconds, but it could be as low as a minute. Gauze or no.
Something else worth considering about the usage of modern handguns: In the last paragraph I mentioned the possibility that the gunshot wouldn’t be enough to incapacitate them. This is true in some circumstances. You’ll put a handgun round into someone and it won’t put them down. This can occur because it didn’t strike anything vital, or it can occur because the blood loss wasn’t fast enough. This means, with most professional shooters, they’ll fire multiple times in quick succession. If your idea was to save a friend by shooting the guy who’s got them at gunpoint, firing once won’t reliably get the job done, and will probably result in them completing the execution before turning on their attacker. In cases like this, putting three or four rounds into someone is going to be necessary, but your character probably wouldn’t know that.
Now, you can write a teenager who would do something like this. Shoot their attacker, then break a leg, stuff some gauze in the wound, and then scamper off, leaving them to die. However, that wouldn’t be someone with an aversion to violence. That’s a character who’s gotten very comfortable with the idea of doing horrific things to people. For a lot of readers, that’s a very scary character. This isn’t automatically a bad thing, but it is something to consider.
I understand the desire to write characters as, “fundamentally good people in bad situations.” The problem is that, kind of a person will have a very different outlook when it comes to violence, as opposed to someone who views violence as just another tool to get the job done. They’re not going to gun someone down, torture them, and leave them to die with some liquor and gauze in the wound. Those aren’t the actions of a good person.
It’s okay if your character isn’t a good person, but if that’s the route you’re going, it’s something you need to be honest with yourself about. It’s also fine to have a character who lies to everyone else about who they are, so long as you are on the same page. If it’s your protagonist, the reader should probably be let in on that secret as well. If it’s a support character, you might hold it back for later. But, when that lie starts to leak out, it’s something you need to address. Because, when it does, it’s a huge betrayal for your other characters to deal with. “She was our friend, she’s not some psycho-murderer. That doesn’t even make sense.”