1) The document provides 10 tips for safely using backyard barbecue grills, with 7,000 Americans injured each year from misusing grills. 2) Key safety tips include keeping grills at least 10 feet from any structure, cleaning grills regularly to prevent grease buildup and fires, and checking gas hoses and connections for leaks. 3) Dangerous practices to avoid are turning on gas with the lid closed, leaving grills unattended as fires double in size every minute, and using grills indoors which poses fire and carbon monoxide hazards.