Armed robbers went to rub a house, and they promised to rape any female found in the house, on getting there, it was only a ground mother that was the only female in the house. The robbers told the granny, to open her teeth because, the number of teeth she has is the number of rounds they will go, granny open her teeth and it was only three teeth. So the robbers go three rounds, behold! After the last one, granny said, my son, I have another one inside.