“Yeah,” said Harry. “Like Barty Crouch, turned into a bone and buried in Hagrid’s front garden. They probably transfigured Moody and stuffed him —”
“Don’t!” squealed Hermione. Startled, Harry looked over just in time to see her burst into tears over her copy of Spellman’s Syllabary.
“Oh no,” said Harry, struggling to get up from the old camp bed. “Hermione, I wasn’t trying to upset —”
But with a great creaking of rusty bedsprings, Ron bounded off the bed and got there first. One arm around Hermione, he fished in his jeans pocket and withdrew a revolting-looking handkerchief that he had used to clean out the oven earlier. Hastily pulling out his wand, he pointed it at the rag and said, “Tergeo.”
The wand siphoned off most of the grease. Looking rather pleased with himself, Ron handed the slightly smoking handkerchief to Hermione.

Harry Potter and the Deathly Hallows – J. K. Rowling