All good.

Twelve pounds of pressure, a gentle kick, will break a knee, permanently disabling your attacker. Aim for a weight-bearing leg, preferably with the knee joint locked straight.

There are two quick ways to kill a person with a single blow:

1. Hit the throat with the web between the spread thumb and index finger. Try it on yourself (gently) to get an idea of exactly where to hit.
2. Make a fist and strike the temple with the knuckle of the index finger. Again, try it on yourself, to precisely locate where.

Of course, another self defense strategy is to carry a gun. Often just showing a potential attacker that you have a gun is enough to make him run away. But you have to be willing to shoot if necessary, without hesitation, you have to practice, and a gun is only useful if you’re beyond the reach of your attacker.