Skating on Thin Ice
"Presumption often ventures quite too near, where danger should awaken wholesome fear" —Northdrop, 1893. A pair of ice skaters approach while another pair of skaters look on at two skaters that have fallen through the ice, near a danger sign, frantically try to get out of the icy waters.
Northrop, Henry Davenport Charming Bible Stories (Philadelphia, PA: J.H. Moore Company, 1893)