How to Defend Against a Bear Hug from Behind

Defending against a headlock involves a series of coordinated actions aimed at quickly escaping the hold. As soon as you feel the headlock being applied, instinctively tuck your chin downwards towards the attacker's hands to protect your windpipe from pressure. Simultaneously, engage your arms and hands in a downward plucking motion towards the attacker's hands, aiming to disrupt the pressure on your throat and loosen their grip. As you apply this plucking action, initiate a rotation of your body inward, moving your shoulders and hips to generate additional leverage against the headlock. Persistence is key; continue applying these techniques with determination, focusing on creating enough space to maneuver your head out of the lock. Once free from the headlock, be prepared to defend yourself or create distance from the attacker as necessary. Practicing these techniques in a controlled environment can help build confidence and muscle memory for effective self-defense in real-life situations.

If you take Taekwondo they will teach you to protect yourself against knives. But the most important thing is not to put yourself in that position.

That is a bad situation. Get something to help the pain, comfort them and check on them. Then you should beg for forgiveness and maybe give them a gift or even let them have something of yours if they do not forgive. Remind them it really was unconscious and not meant.