100%

​In Jiu Jitsu we can go closer to a hundred percent on each other than those who do striking martial arts. When I started doing martial arts we did not know nearly anything about the effects of concussive brain trauma, now that we do, we need to do better. If you don’t have any protective equipment or the person you are sparring doesn’t have any protective equipment, maybe don’t punch them in the face. It’s common courtesy even in 2003. Be smarter, it’s not that hard.