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Now if you were in a bear hug by someone bigger and stronger, chance are I would headbutt them, but most likely they will be doing a bear hug where their face is looking left or right and on your chest, or they're behind you. Chances are you're talking about a bearhug where they're in front of you, since you said you would try and bite them. So I would for sure bite them, it's probably the most simple way to get them to let go of you, especially if you bit off a nice chunk of their scalp. If you're talking about when they're behind you, try and use your heel to hit them in the groin, or the kneecap, but a headbutt could also work if the situation allows you too. If any case their superman or tolerant to pain, you should hope you have a weapon or some object you could use to puncture the side of their body. Basically the idea of it all, when you're in a bear hug by someone who is trying to crush you, is that you have to do anything necessary to get out of what can possibly disable you.
Excellent answer! I always prefer a bite to a headbutt in a real self-defense scenario because 1. It's less potential harm to me, 2. Less chance of failure, 3. A constant and immediately threatening attack that WILL get attention put towards it.
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you bend your knees and lift your arms...no matter HOW strong u can do it.. and grab their wrist with your opposite hands so its like an X and flip em..
That sounds fine IF I was on the ground. But like I said, this is for a scenario where I'm being dangled in mid-air. If I'm on the ground, I can most likely get someone into a really simple, and really ugly hip toss and get them to the ground by using my head pushed into theirs to create an inch of space, turning my body to the side and directly into them, thus relieving the pressure on my arms and performing a really ugly hip-toss. Otherwise, since they're most likely grabbing higher up on my arms if they want to stay level with me, I'll just wrap whatever I have left of my arms low around their waist, pull them in tight, crumple them in and walk them down.
Once it's on the ground, it's much easier to pop out of these maneuvers because if you're calm and relaxed, you can utilize leverage and sudden explosive movements.
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um... what you would you do if he grab you from behind,
and his swaying you back and forth?
trying to make you fall down to the ground?
i would panic. so... how do i try to hurt him?
like... if i had a backpack on, it would be heavy and harder for me to get in control.
im a college student, i aint taking no chances.
so.. just give me a scenario and what i should do.
the basic college student mugging.
For this one, I'm having a hard time picturing it. Is he swaying you back and forth in the air and then trying to bring you down? If he is, the fact that you can't use your legs 100% is the most dangerous thing. You'd have to reach behind with your legs and hook them behind his knees to stop the swaying and to stop him from potentially slamming you. Then you'd be at a stalemate where he'd eventually want to drop you back to your feet so he could finish mugging you.
Ok, so since your feet are on the ground now anyway, this is what I personally would do if someone got me from behind, swayed me back and forth to take me down, and I was wearing a backpack. WOW, what a doozy of a situation!
1. Immediately create a wider base. Move your feet out so that you're in the most stable position you can be in. Also, bend your knees and stay slightly lower too. Do both of these quickly and suddenly. It's really hard to push someone down from higher up, which is why football players are always taught to tackle low, near the hips or even lower, Sumo wrestlers need to be flexible enough to get lower than their opponent, etc.
2. Now for the bear hug part. Advice is always different depending on whether the guy has your arms trapped or not. The bear hug should already be fairly loose since you're wearing a backpack. If he had your arms trapped, by the time you do your sudden wide base change, his grip should be even weaker. Now there are two options from here. You can either bend over and try reach between your legs and grab his (RISKY!) or since you now have a little bit of space, try and turn your body to the side.
A) Bend over, reach between your legs, grab one of his legs, and use all the energy in your legs and back to pull his leg up from under him. I've never seen anyone NOT fall from this once you have their leg. It's risky because if you take too long trying to get his leg, he'll just move it out of the way. Or since you're not bent over, he can just push you over to the side.

The next option involves suddenly changing his momentum and energy direction. (it's easier than it sounds)
Example - If I'm pushing against you, your initial reaction is to push back. If you don't, you'll get pushed back and maybe even fall over. So it's going to be your natural reaction to try to push back with the same or even more force that I'm pushing you with.
So in this instance, you push back suddenly. There'll be a split second where he needs to redirect his energy to push back against you. Then as he's starting to push back into you, you now can guide his momentum by sharply turning your body to the side and bending at the knees, bringing him to the ground. This uses his momentum, your sudden change in direction, and the fact that you're now at a lower level to create a perfect scenario for a simple judo throw.
Keep in mind, neither of these are easy enough to remember while you're getting mugged. Join a class, or try it on your friends (on grass or padded mats!!!). The more you do it, the more second nature it becomes. Plus, understanding the mechanics of the body really helps out. For instance, if you know that the human body almost ALWAYS goes where the head goes, you'll be able to better control people. Or that if you want to stop someone's arms, the best places to grab them are at the wrists or the biceps.
Whenever you're being attacked from behind, there's an extra sense of panic, because clearly you didn't see it coming. Luckily, if the person didn't already knock you over the head, and you at least immediately know to either take a low and wide stance, or if he's got you in mid-air, to hook your legs behind his knees as quickly as you can, you'll have a few seconds to plot your next move. The absolute best thing to do, of course, is to try NEVER to get attacked from behind. Stay alert when walking anywhere, try to always get a sense of what's going on around you, and don't be afraid to turn around if you feel the least bit suspicious. You're MUCH better off for self-defense in face-to-face situations.
P.S. If someone has a bear-hug on you from behind, and your arms ARE NOT trapped, it's actually one of the easiest holds in all of grappling to get out of. I've had 200+ lb fighters not be able to resist this simple, really stupid looking motion. Grab one of his wrists with both of your hands. Hold on tight, think about sending his arm both down and away, and then...SHIMMY! Shimmy back and forth, with both your body and your hands, and eventually, his grip will come loose. Weird huh? Don't forget it. It's useful!