I agree Zach. One shouldn't just teach sometimes brutal techniques and then not shoulder some responsibility should they be misused by the student. I'm not saying that the charactor of the student has to be sterling, but thugs need not join either. Have seen people join in the past who only wanted to learn to **** people up as they put it. Usually they don't have the disipline to stick around anyway. These types should just keep on walking to the local Mcdojo who will meet them with open arms.