When a ketchup bottle has been sitting in a hot kitchen undisturbed for too long, and the contents ferment. When you open it, the gases cause the ketchup to splatter upward, all over you.
When a ketchup bottle has been sitting in a hot kitchen undisturbed for too long, and the contents ferment. When you open it, the gases cause the ketchup to splatter upward, all over you.