“Never tickle a sleeping dragon.”
“Draco dormiens nunquam titillandu. A sleeping dragon is never to be tickled.”
“Draco Dormiens Nunquam Titillandus[never tickle a sleeping dragon]”
“Sleeping on a dragon's hoard with greedy, dragonish thoughts in his heart, he had become a dragon himself.”
“He had turned into a dragon while he was asleep. Sleeping on a dragon's hoard with greedy, dragonish thoughts in his heart, he had become a dragon himself.”
“Deliberately causing mayhem in Snape's Potions class was about as safe as poking a sleeping dragon in the eye.”