Boy and dad make a volcano with a couple of glasses and liquids and it explodes all over the ceiling and the table. Science experiment. Mess.
Man makes baking soda and vinegar bomb, it explodes in his hand on the sidewalk. Bonehead.
Man puts Mentos in a bottle of Diet Coke, throws it on the sidewalk several times, hoping to make it explode. Suddenly, the bottle flies at the camera like a rocket, hitting the camera man.
Teen boy attempts to launch a rocket powered by vinegar and baking soda. Rocket goes off before boy is ready. No one gets hurt.