“People who teach boat safety, such as Mitch Strobl of Boat-Ed.com, adamantly tell people not to hang onto the back of a boat when the engine is running. Whether swimmers are being pulled at full speed or simply lounging in the water while holding onto an idling boat, swimmers can be knocked unconscious before they even know they’re in danger.”

Drowning victim Sarah Pool had carbon monoxide in system – News – Austin American-Statesman – Austin, TX