Originally Posted by J.K.

"So why beating, punching, kicking a heavy bag, you will never ever hit a human this hard, its more the fast punches and blocks which we shall use, those can hurt, but not destroy.

A Martial Artist who kills doesen´t understand his MA, doesen´t understand any MA.
MA don´t mean to kill, it means (today) to protect those we love, not to kill those we hate"

1st - if I am in a serious street fight where my life is threatened I - my intention will be to kill my aggressor with brutal force. Its about self preservation...When I punch some one I punch them as hard as i possibly can - take them out lickady split.

Your Aikido background is leading you a stray. Don't think that all those fancy moves will protect you - there is a lot of deception in that art. That is to say - its a complicated system that is hard to pull off. Students of aikido are fooled by the demonstrations of this art - you see 18 people attacking the teacher and everyone goes flying - its a crock. Anyways - sorry to bash your art - but wake up. Your studying self defense - so time you must destroy your opponent to preserve your self. "Hate your enemy with a whole heart - if a man smites you one cheek then smash him on the other - for self preservation is the highest law - he who turns the other cheek is a cowardly dog...."(Anton Levay)