Well, a dragon in your house would make far bigger messes than a dog. I mean, he flaps his wings, and your bowls, pots, swords, armor, children, steward, tables, benches, chairs, workbenches, tools, trophies, flowers, meat, cheese, apples, rings, bunnies, jewels, books, letters, amulets, and pretty much everything else that isn't nailed down (and maybe siome stuff that is) will go flying helter skelter.
They're expensive to feed, too.
