If I was a student at Hogwarts I’d use Howlers to send nice messages to people.
So you’d be sitting there in the Great Hall eating breakfast when an owl drops a Howler in front of you. You, and everyone else on your table, just stares at it as it trembles, explodes open, shrieks I WANT TO TOUCH YOUR SWEET BUTT and then dissolves into flames.
What if purgatory used to be Eden? It’s been warped since Adam and Eve ate the apple, but instead of being banished out of Eden, like, Eve was trapped there. and she became the Mother of monsters, and that’s where they live now.