>The villain has a monster pet that eats at least one of his own henchman when he tries to feed the player to it.
It's the best, most deranged goddamn cliche ever and it never gets old. It ALWAYS hits. The more disturbing way it eats one of his employees and nobody even fucking cares at all is peak characterization. Even better if it also has a beastmaster that gets upset when we kill it.