Do carry "whistle" to make one. Children in Japan are girls or to carry a whistle to prevent the. In time they will come across bad people, blowing whistles and force most people are running away because they felt unsafe.
do carry a "whistle" will help to some degree. Girls or boys in Japan will have to carry a whistle to protect themselves. In times like criminals They will whistle force. Then the assailant to run away because they feel unsafe.
Do carry "whistle" will help one level. Women or children in Japan will have to carry a whistle to defend themselves in time to see the you are blowing the whistle strength. Then he ran away because you feel insecure.