Strangely enough, that is possible. What's not realistic is that anybody can do it. If you can, try catching the special Fight Science on the National Geographic Channel. Some really impressive stuff trained people are able to do, and it busts some myths and shows the weaknesses of some weapons *cough* nunchaku *cough*.

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If we don't play god, who will?-James Watson
I never think of the future, it comes soon enough.-Albert Einstein
The large print giveth and the small print taketh away.-Tom Waits
Any sufficiently advanced technology is indistinguishable from a yo-yo.-Enoch Root, The Confusion
When I was a kid, if someone brandished a shrink gun he'd get a little bit of respect!-Myron Reducto, Harvey Birdman