@Forgetful_Gynn @Jonaschuzzlewit @blankdeblank @Wormwood @charliebrownau @milk They don't need it to sleep, but I can imagine off the top of my head how that would happen.
>Dragon appears and starts terrorizing hunting parties.
>Dragon eventually attacks a town and steals a cow, causing a stampede and massive destruction in the process.
>People assume they breathed fire since the stampeding cows knocked over lamps and torches and basically razed half the area.
>Local priest thinks they are being punished and must give offering. Put shiny things on a cow and lead it to dragon's den.
>Repeat this process every year for decades. Dragon puts shinies into its nest like a crow.