I just picked up a copy of "Shaolin Chin Na" by Dr. Yang, Jwing-Ming. I was wondering if there are any books on Anti-Chin Na? I was going over some of the locks on my Mom's boyfriend, and got to thinking. If I made the mistake of letting myself be put in these locks, how would I go about getting out of these. Mainly the ones where you have the arm locked behind the body like in White Crane Bores the Bush.