Yahoo News reports:
Road tip: Use the parking brake. An unnamed motorist in Colorado learned that the hard way during an apparent bathroom pit stop. Footage from a dashcam shows the man emerging from a roadside port-a-potty just in time to see his truck roll across the road and off a cliff. Viral Hog reported that the vehicle was empty at the time, and no one was injured in the incident, which took place near Rocky Mountain National Park.