Summer is upon us, and with it comes the opportunity to grill fine meats outside. That’s probably the best place to try this prank, since it’s gonna make a goddamn mess.
The setup isn’t all that complicated, really: Just throw some baking soda into a bottle of ketchup, mix it up real nice, and wait for some unsuspecting victim to hit up the condiments. (Oh, and make sure to have some ketchup you haven’t tampered with on hand as well—otherwise, we’re talking about a lot of disappointed people with naked hot dogs.)
Well, that’s your Fourth of July fireworks display sorted out.