[jmacusa]

Nope. The crown of the forehead, not the flat forehead itself but just up above it, the rounded part of the skull is one of the hardest areas and biggest concentration of human bone mass. Haven't you ever seen Karate and Kung Fu masters smash a stack of bricks doing this? I have. I studied Karate too. An Okinawan style called Goshin-Do. You know what a ''chicken head'' wrist strike is right? Using the very top part of the wrist? You can break somone's nose very easily doing that one.

[lee martell]

I remember demonstrations of the Chicken Head Strike. They can be very effective. We were warned to train in slow motion only, at least while in the Dojo.