186. Rabbi Aba sat at the gate of the city Lod. He saw a man sitting on a ledge PROTRUDING from a mountainside. He was weary from the road, so he sat down and slept. While he was sleeping, he saw a snake coming toward him. A reptile emerged and killed the snake. When the man woke, he saw the dead snake. He stood up and the ledge, WHICH HAD BEEN TORN FROM THE MOUNTAIN, fell to the valley below. Thus, he was saved, FOR HAD HE RISEN A MOMENT LATER, HE WOULD HAVE FALLEN TOGETHER WITH THE LEDGE INTO THE VALLEY AND BEEN KILLED.