C91 imparting experience

As long as you have a knife in your hand, the criminal holding you behind your back will definitely suffer a great misfortune! If your hand could move outside and find him and cut him twice on the back, he would scream like a pig. If you hug him with your arms, don't be impatient, he'll turn to the front right away, and then it won't be too late to cut him off. You'd better "persuade" him