The practice of cutting strips from an enemy's back is frequently referred to in the Skazkas--much more frequently than in the German and Norse stories. It is not often that such strips are turned to good account, but in the Skazka with which we have just been dealing, Ivan finding the rope by which he is being lowered into the abyss too short, ties to the end of it the three strips he has cut from the Baba Yaga's back, and so makes it sufficiently long. They are often exacted as the penalty of losing a wager, as well in the Skazkas as elsewhere.[175] In a West-Slavonian story about a wager of this kind, the winner cuts off the loser's nose.[176] In the Gaelic stories it is not an uncommon incident for a man to have "a strip of skin cut off him from his crown to his sole."[177] The Baba Yaga generally kills people in order to eat them. Her house is fenced about with the bones of the men whose flesh she has devoured; in one story she offers a human arm, by way of a meal, to a girl who visits her. But she is also represented in one of the stories[178] as petrifying her victims. This trait connects her with Medusa, and the three sister Baba Yagas with the three Gorgones. The Russian Gorgo's method of petrifaction is singular. In the story referred to, Ivan Dévich (Ivan the servant-maid's son) meets a Baba Yaga, who plucks one of her hairs, gives it to him, and says, "Tie three knots and then blow." He does so, and both he and his horse turn into stone. The Baba Yaga places them in her mortar, pounds them to bits, and buries their remains under a stone. A little later comes Ivan Dévich's comrade, Prince Ivan. Him also the Yaga attempts to destroy, but he feigns ignorance, and persuades her to show him how to tie knots and to blow. The result is that she becomes petrified herself. Prince Ivan puts her in her own mortar, and proceeds to pound her therein, until she tells him where the fragments of his comrade are, and what he must do to restore them to life.