I have a small bone structure and when I grapple with ppl(especially heavier guys) sometimes they'll grab my wrist and hold it. I feel powerless to escape their hold. Since my wrists are small it's easier for them to hold on. And they'll pass my guard cuz of it. Anyone have similar problems? Remedies? I can't circle around to grab theirs either. If I grab their grabing arm with my other arm it doesn't work.