Came across this article on another forum. I thought it was interesting and worth posting again.
It was written by Dave Turton.
A little about Dave.

You hear this statement, or something very similar, often about martial arts or self-defence techniques.
Whether it’s from a competitor in a small ‘first-time’ competition, or someone who has done some self-defence training and had to ‘use’ it in a real situation, this statement must have been heard by training partners and instructors countless times.
IÂ’ve heard this many times over my 40 plus years of instructing, never mind my nearly fifty years involved.
Let’s face it, we all expect our techniques, methods and principles to WORK when we put them to the test. So, what do we REALLY mean when we say “it doesn’t work”?
There are several factors that can influence a supposed ‘failure’ in applying techniques and methods.
I have listed some below with a short explanation on how we can turn what has become a negative into a positive.
A little about Dave.