Somewhere once, I came across the phrase “he gave birth to a monster of his imagination,” I think in reference to a philosopher. As a tuning, seek out resident images or seeds of images in your imagination that you could nurture into something grotesque or monstrous. Look for traces of inchoate smashers, destroyers, squashers, devourers. You could think of this in relation to writing temperament, as a pathway into embracing wrongness, going against whatever rules of good behavior you’ve absorbed. Or you could use this to conjure a monster, in which case you should give your monster a name and then think about how the monster might teach you something or notice possibilities that your non-monstrous writer mind wouldn’t.
There is a linked generator exercise for this. (monster soliloquy). If you’re only doing the tuning, use it as a way to ask yourself about what good behavior and bad behavior mean to you, as a writer, about internalized rules and about impulses you rarely allow yourself to follow.