TKD AND KARATE SPARRING please comment?

LMAO!!! Well, It is good to keep your hands up to block and make fist so they can't score points and break fingers. But some people drop their hands just to taunt your opponent. Like for instance if your hands are down your opponent may go for the hit right away and take a chance to score a point. So when he goes for that point you do a jumping spinning hook kick and knock him out. Sometimes people do it for strategy.