I've been trying real hard to stay out of this, but I have to rebut one point. The idea that a slap doesn't do harm ("No, I think they mean a slap... which is why there was not mark") has never been hit with an open hand by someone who knows what they're doing, or is being powered by adreniline (boy, do I need a spell check!) I've been hit by closed fists and open hands, and it makes little difference which one you are hit with when the strike is driven by proper technique or by fury. If you don't believe me, let me hit you just one little open handed slap. I'll even give you a cold beer when you wake up.

Peace,

Blues
(former bouncer and karate practitioner)