Google “improvised weapons” and you will find instructions on how to use ordinary keys in self-defense, so this is why I titled this tip the way I did. Nevertheless, to me a bunch of keys is not an improvised weapon. To me keys are ordinary utility objects used in an emergency to defend oneself with, much like an ordinary pencil or a sturdy umbrella. “Improvise” means making something needed out of what is conveniently on hand. A key or a bunch of keys is not “made” into anything–it is put to a less usual use without making it into anything different or changing it in any way. If you think the distinction does not matter, then have a lawyer explain to you why it does.
Now to the tip’s topic, that is to the use of keys in self-defense.
Have you seen pictures like the one below?
If you hold keys like this and hit an attacker, you may hurt him some but you will hurt your hand. And it is not good to have a hurt hand in a fight. . . . The below video shows how to correctly use keys in self-defense. It also teaches which keys are better not to be used for self-defense.
Keys as Improvised Weapons with Alain Burrese