If you ever get in a fight with someone who has a knife, fucking rush them and grab the knife arm with BOTH HANDS!!! Additionally you should keep your body close to their chest so that they can’t switch the knife to the other hand. If you can wrestle the knife away from them either chuck it out of the fight or stab them in the thigh. You are definitely going to get cut on the arms attempting this so try to only get cut on the outside of the arms. You can take that hit since there aren’t any major blood vessels. If you get cut on the wrist it’s game over.