For example, if a person grabs your hand or locks your throat, your body should make a solution at the first time. This depends on the usual disassembly, also called feeding. Therefore, if you want to practice fighting well, someone must practice it, so that these skills can become a part of your body and you can do whatever you want when you are in danger. Otherwise, if someone hits you, you have to think about whether to dodge or block for a long time, what position to block and so on.