He nods. "Okay. Let me know if you want me to stop, and I will." That being said, he approaches her and touches her shoulder to steer her into turning a little. "What I'm going to show you first is a great defensive move if you can get behind your attacker." He carefully puts his arm across her collarbone, and reaches his other arm around to grab his own elbow, so that her neck is almost being 'held' in the crook of his elbow. "You use your hand to help pull back on your other arm, and the bones in your arm should press against the arteries in the neck. Hold it long enough and they'll pass out from lack of oxygen." He doesn't press more than a tiny bit though, since knocking her out would defeat the purpose. "It's really hard to get out of this hold if you do it right."