I guess i should have made that statement. I wouldnt lung for someone from 5 feet away. It normally face to face. They dont have time to react. Grab them take them to the ground and hold them. When their face turns purple, ask them if they want them to let go. When the respond (which they wont, they cant breath, and there is no blood flow through the neck) say "I didnt hear you, can I let go now? Wait a few more seconds then flick your pointer finger as you break your grip. Work everytime. Never had a problem after that with the person or anyone standing around. If who every is standing around tries to interfere there is a possible chance you may break something. Most people get smart when you have there friend on the ground turning purple.