《太平广记·卷四百五十九·蛇四》
人们认为是件怪事，就扔掉了蛇。据考查：这条蛇活着时不能隐藏自己的身形，死后却能隐藏人的身形。
于是负此蛇者皆不见，人以为怪，乃弃之。案此蛇生不自隐其形，死乃能隐人之形。
People thought it was strange and threw away the snake. After investigation: when the snake was alive it could not hide its figure, but after it died it could hide the figure of a person.