when mugged or assaulted, a martial artist would choose to cause serious injury or kill rather than have serious injury or be killed. I was a doorman to a necklace shop once and I nearly caused death to this thief because I knife hand his throat. he just moved away and found a water fountain, drank water, then ran away in fear. he never showed up again. we never reported him to the authorities because we recovered what he stole when I knife handed him. if possible, avoid fights.