Hmm I hope you don't mind me being a skeptic. I don't think you can avoid being clawed by putting up your elbows. And if a Grizzly wants to flip you over, you flip over.. Please Register or Log in to view the hidden image! There's not too much a human can do against that kind of strength. I'd say fight back if all else fails. The bear might just be surprised, but I wouldn't count on it. True, that won't work if he's already considering you food. But do bears actually hunt people (apart from Polar bears) ? Yep, and keep your camp clear of any food.