The Rabbis have taught that when pestilence is abroad no one should walk along the middle of the road, for there the angel of death would be sure to cross him. Neither when there is pestilence in a town should a person go to the synagogue alone, because there, provided no children are taught there, and ten men are not met to pray there, the angel of death hides his weapons. The Rabbis have also taught that (like the Banshee of Ireland), the howling of dogs indicates the approach of the angel of death, whereas when they sport it is a sign that Elijah the prophet is at hand, unless one of them happen to be a female, for it is her presence among them, and not any super-natural instinct, that is to be understood as the cause of the demonstration.