An Answermug pal has a "death look". Another Answermug pal has a "you are doomed look". Do you have a "look" you use on others if provoked?

Just imagine how a look would save lives. No weapons needed. No blood shed. Just a "death look" or a "you are doomed look" and the biggest bullies would shrink away scared to death. Could we fight wars with "death looks" or "You are doomed looks" instead of lethal weapons?