Connor Lonske said:
I've seen this response a couple of times while browsing answers. While it sounds like a good idea, in practical application, it really, really isn't for a couple of reasons.
Since you've got a gun in your ideal here, that's what I'll explain:
1: If you're shooting in self defense, your attacker is usually inside of 15-20 feet, often much, much closer. Proper training is teaching you to aim for center of mass, as in the body. It's a large target that's hard to miss, even in a high-stress, adrenaline rushed panic. Taking the time to take an accurate shot at a small, fast moving target is a good way to get stabbed, beaten, disarmed, and/or dead.
2: I don't know where you're from, but in America, if you cripple them (and shooting them in the knee-cap is a life-long disability), they CAN and probably WILL sue you. They even have a chance of WINNING. To be completely cold and mathematical about it, there are court costs (which are expensive) their hospital bills (probably paid for with tax dollars), and then more tax money going to keeping them in jail. It just makes more sense financially to end their life than wound/cripple them.