It's funny how he said he's not gonna waste their time but he took more than a minute explaining what to do, let alone show what to do when somebody grabs you from behind and do a chokehold. Both of the guys waiting for it to happen slowly lost their interest until he died, haha. That self defense instructor's partner probably got tired of him, too. Anyway the instructor asked for it when he said choke him full force and don't play around with it, lmfao.