Fiction/Fantasy
Torturing a group of gay bashing homophobes to death I Spit On Your Grave style with anal rapings with shards of glass and shit, and if they don't scream hard enough they get dosed with some sense enhancing toxin until they're sufficiently psychologically vulnerable and terrified, and then they all are forced to fight to the death in a perverse version of musical chairs (when the music stops the last person out has to get glass shard raped by the others to death, any who refuse to be punishers get their legs chopped off).