If you don't use head butts because you might hurt your head....... and don't train shin kicks because you might hurt your shins........ Which body weapon do you have that you definately (including 0.01% of the time) will not hurt?
Actually I do teach the use of head butts...in a limited way and not as a primary tool as..."kness, head butts and elbows, routine." There are just some times you have to head butt. But my head is not a war mace. In my Unarmed Combatives Level 8, my strike module is called "The Limited Use of the Head Butt." The key word there being limited, not never.
There are even times I would have to hit a guy with my laptop computer too. Situational. In fact when I poke fun at these guys, I may now call it "knees, laptops and elbows," just to make folks remember their near-liquid, splashing BRAINS are deeply involved in head butting.)
And using the shin to hit with, and hitting the right target is fine. (In the prior message about the "diminished shin" it was a very good point that the reason that healthy shin might cave unexpectantly like that, might be it had a bit of fracture softening it up. That should/could have been a survivorable kick. I think a lot of people look at that clip and never think that the shin may have been already weakened) I would NEVER tell anyone not to shin kick. EVER.
The geneal rule of thumb for the realistic survivalist? Try to...
Hit something soft with something hard
>punching-fist to the torso or neck
and vice versa...
etc...
Hit something hard with something soft
>palm strike to head
>shin to thigh, side of knee, torso...
etc...
(Note the word "TRY")
Is a good rule of thumb which I think can be instilled though muscle-memory training.
If you punch me in the head or head butt me in the head, I could quite easily collapse from the impact. I'm screwed. Great shot! Your head butting me is terrible for me. Always will be. And you won!
But, the survival strategist next, must now plan to make it least terrible for you. For you might fight multiple opponents and well...just because....it's smarter! The smarter strategist next plans to save your head and fist from mishap by creating a smarter strike that still knocks me down and out, but saves your body parts for all the many common sense reasons.
A smarter system creates a framework that enhances the practitioner's survival, that is why the head butt should be a weapon of the last resort and a shin kick can be pretty damn good, and one should "TRY" to hit something hard with something soft, and something soft with something hard as a general rule of thumb.
Hock