A gun is such a piece of equipment. 제복을 입지 않은 낯선 사람이 공공장소에서 총기를 숨기지 않고 들고 다니는 것은 무서운 일입니다. Even more frightening is the prospect that the man or woman approaching you from down the street might have such a weapon concealed and you have no way of knowing it.