LOL: Why not barbecue a water balloon? This is why!
(CBS) I know what you're thinking. "Gee, what a great idea it would be to barbecue a water balloon!" Resist that impulse. The above video - titled "Why not to barbecue a water balloon" - is all the proof you need that barbecues and water balloons do not mix.
Save the grill for making hamburgers and the water balloons for nailing someone while they eat a hamburger.