Here I stand a normal man to the untrained eye.
Yet my body and mind are a weapon of great destruction.
Here I stand a man, who will not pick a fight. But if one is brought to me I will not break so easily.
With words is what I will use first, for that is my mind.
When words are not enough, I will use my body.
The elbows, will deliver the words you did not hear.
The fists will be so you never forget.
My shins hard like steel, will bring you fear so that you never mistake a normal man for being weak.

Gary Hembree

http://www.poemhunter.com/poem/the-science-of-eight-limbs/