“Many people subscribe to the idea that 'violence solves nothing'. In fact, a great many problems can be solved with violence, provided you use enough and in the right way. However, using violent means will often create new problems... Thus if possible it is best to deal with threats by non-violent means. However, sometimes there is no alternative but to use force. If you have tried and failed or been given no opportunity to avoid trouble, de-escalate the situation or deter the assailant, then you must accept that the attack is going to happen and deal with it head-on. If this creates new problems, you can handle them as they arise.
Remember that your goal is always to bring the situation to an end on your own terms, and act accordingly.”