Once, she saw a farmer walking barefoot on ice and ordered his feet cut off so she could study them and figure out why they were so resistant to low temperatures. On another occasion, she had a pregnant woman's belly cut open so it satisfied her curiosity to find out what happened inside. To verify an ancient saying that "a good man's heart has seven apertures", she even had the heart of the minister Bi Gan (King Zhou's uncle) dug out and subjected to her scrutiny.