All good information. Thanks!Rottweiler said:snip
Only tangentially related, this is why I've said that knives make bad self-defense weapons. I don't blame this kid for using one, because I wouldn't expect him to have researched this stuff heavily... but as people consider the future, knives are awful as anything but tools.
1. You have to get too close to use it. In defense, your goal is to get away, not get closer. Knives force you into a worse situation. A good self-defense weapon should help you maintain distance.
2. They're small and tricky to grip, so they can too easily be taken away (even by sheer luck). And, because of #1, when they're taken away, the person taking it already has you within striking distance. A good self-defense weapon should not be easily turned on you.
3. Stabs have to be placed in pretty specific places to get immediate results (ie, stop an assailant). Slashes are more of a deterrent, but require you to be very close to actually land one with enough pressure to cause pain (see #1). A good self-defense weapon needs to provide immediate results.
One of the best? A sturdy cane. Its length allows you to maintain a perimeter around you, and that in turn makes it harder for the attacker to get in close enough to steal and use it. The shock of blunt force will do more to momentarily stop someone -- it can even get them off-balance and on the ground -- allowing you to escape.
Handguns are also a special case. They're nearly useless once you're in too close. They serve the purpose of preventing that, but can't do much about it. As far as self-defense weapons goes, I think nearly no one should ever have to use the gun... but I believe they should be able to own it. The self-defense value of a handgun is, generally speaking, simply being there. Most attackers will not risk it. And if they're backed up and/or on the retreat, there's no need to fire.