The Scarborough Bluffs are tall chalky limestone features that erode in a dangerous and unpredictable way. Far too many people have perished from accidental falls or, as in this example, from willfully putting oneself in harm's way for the sake of "thrill" with nary a thought for the risks taken by first responders who attempt to save trapped misadventure victims. This guy astounded me by running at high speed down a dangerously precarious slope as his friends cheered from high above. He was fortunate not to be badly injured, or worse. Not something I would want to witness, let alone photograph!