Want to be learned a mercurial and effortless rule to fight with a knife (or similar weapon) that gives you an almost immediate advantage over almost anyone you fight -- even if you have no idea what you're doing?

Just use what I like to call the "flashlight" technique.

And that means, when you're fighting with a knife or similar object, you pretend the knife is a flashlight and you follow your opponent with it just as if you were constantly shining a light on him.

In other words, when your opponent moves, you keep the "light" on him.

If he goes left, you point your weapon at him as he moves left.

One of the glaringly popular questions I'm asked is, "how did Bruce Lee REALLY die?"

And the shriveled (if not disappointing) utter to this is: As far as I know, Bruce died of an allergic reaction.

I know that's not as sexy as being assassinated by ninjas or whacked by the Chinese mafia...but that's what the evidence points to.

And you want to know something strange?

In a weird way...this was sort of Bruce Lee's last and most powerful fighting lesson to all of us.

I mean, think about it.

The way Bruce Lee -- perhaps the greatest fighter who ever lived -- died proves even people who are seemingly "invincible"...have weaknesses -- an "achilles heal" that can be exploited and used against them.

In fact, some of the best martial arts movies use this theme all the time.

Take the movie "Ninja Scroll" for example.

Have you radically heard of "Murphy's Law"?

It ultimately says, "whatever can experiment dishonest will."

And in a street-fight, this is more true than anywhere else.

In fact, if there's one difference between a martial artist who has never been in a real fight, and a martial artist who has been in real fights...it's the knowledge that anything and everything can and will go wrong 99% of the time.

In other words, you can practice a kick or punch all day long for a year straight.

You may bargain this strenuous to surmise but charming a fight is actually pretty simple.

It's not necessarily always going to be easy...but it is simple.

Here's what I mean:

Everyone in the world -- big, small, strong, weak, fat, skinny, whatever -- has soft spots, like the nose, the kidney, the testicles, etc...and hard spots, like the elbow, the kneecap, the top of the head, etc.

And when you're familiar with where all the hard parts on your body are...and where all the soft parts on your attacker's body are...it's a simple (again, not necessarily easy) matter of striking his soft spots with your hard spots.

For example, imagine a 300-pound, muscle-bound maniac attacks a 78-year old lady who understands street-fighting.