I've seen lots of terrible weapons used in video games, in movies, read about them in books. For instance, there was the glave in this one movie...it was a three bladed round knife the hero used to kill off some ogre or something. There are the laser swords in Star Wars. Poisons, gases, bullets, garrottes, fire, numerous horrendous cannons and missiles.
Okay, they're all pretty awful and deadly when used correctly. But I thought of a super weapon for someone to use in my new story, Dancin' in the Dark.
A toilet seat.
Try to get your mind around that, folks!