Bullshido by any other name...
- You must train realistically. When training to deal with punches and kicks, for instance, your training partner needs to try to HIT you. Otherwise, your training is rubbish and you'll look an arse. It is an absolute truth that you fight the way you train - actually, it is more accurate to say that you fight worse than you train. If your training is shitty, your actual fighting will be far worse than shitty.
- You must be prepared to improvise. The self-defence techniques that are taught in any art - not just Krav Maga, but BJJ and judo and all others - are merely very highly stylised versions of actual situations. In real life it NEVER goes down exactly the way the technique is taught in class. Those techniques are of no more use and value than a karate kata in the real world. The techniques are useful for giving you appropriate skills and muscle memory, but these serve only to give you the most basic tools needed to defend yourself in real life.
- You must spar. I don't care how many black belts you claim to have. I don't care how skilled you claim to be. I don't care if you practice by hitting pads held by ten people surrounding you. Put on a pair of gloves - 14oz boxing, 7oz hybrid, or 4oz MMA, I don't particularly care - and a groin cup and a mouthpiece, and go fight one person. If you cannot fight ONE person skillfully and out-strike, out-grapple, or out-wrestle him, in a controlled environment with even minimal rules, you cannot win a fight on the street.
- You must be humble. I have personally witnessed 1st, 2nd, and 4th Dan black belt tests in Krav Maga. As one gets higher up the ranks, the material becomes much more difficult, and any martial artist worth the name becomes more humble, not less, because he knows that he will never get to the top of that mountain of knowledge. At 2nd Dan black belt, one has to spar with someone holding a knife. If he stabs you - you FAIL. Not just that segment of material - the entire test. Knife-fighting is really hard. More people have been killed with knives and sticks, throughout all of human history, than guns and bombs - and almost nothing is more dangerous on the street than fighting against someone armed with a blade. If you think that you can train in Krav Maga, or escrima or any other fighting art, and consistently survive a knife attack on the street - you're a moron. Even the most highly skilled practitioners will tell you that at least 9 times out of 10, against a skilled attacker with a knife, YOU WILL DIE.
- You must respect the weapons. A gun, a knife, and a stick are all completely different weapons with different guiding principles behind their usage. A gun, when properly used, cannot be defended against - because there is no defence against a bullet traveling at supersonic speed fired from twenty feet away. A knife is a short, sharp edged weapon, which means that your single best defence against it is to increase the distance between you and the attacker. A stick is a long, blunt weapon, so your best defence against it is to collapse the distance.