Misunderstood your earlier comment. Sorry 'bout that. And you chose the example that MMA is big in Japan, so I made the assumption. But the difference is a sporting event and a real life situation. That is where it differs. In sports, don't hit your opponent when he is down. That is the opinion of some people, even when they know some grappling and groundfighting techniques. But in real life, hit him until he is out of the equation, even when he is on the ground. Since MMA is a sport, so that is where his opinion is from.