The real question isn't the "fak sao" technique...but the "fak yoo" technique. When someone attacks with a punch....BAM--FAK YOO! If they attack with a kick "BAM BAM--FAK YOO TWO!"
"I don't know if anyone is known with the art of "sitting on your couch" here, but in my eyes it is also to be a martial art.
It is the art of avoiding dangerous situations. It helps you to avoid a dangerous situation by not actually being there. So lets say there is a dangerous situation going on somewhere other than your couch. You are safely seated on your couch so you have in a nutshell "difused" the situation."