Weirdly enough, I haven't seen any "Natural 20" or "Natural 1" assumptions at our table. The same for grades of success within the success range based on the roll or the total.

My MC sprung a little bit of fuckery with my Hardholder's daughter Penny last game. People started receiving handwritten letters from her asking for things.

My favorite part is "I'm writing you since we don't pray, we write letters." Which turned out to say more about my hardholder than any other piece of the first session.

Now, he stage magician Midnight is stuck looking for a rabbit since "if he does the rabbit trick next week then it's her birthday."

This inspired me to snatch up the Norman move from the Faceless playbook and suggest that the MC appy it to Penny, with the exception that it's "When Penny asks you to do something roll..."

In short there's a decent amount of terror regarding disappointing the pampered hardholder's daughter, either due to fear of her father or some sort of maelstrom effect from the little princess.