I heard from my dear friend Tiberius Ogden, that you can produce a Patronus? For a bonus point...? Harry raised his wand, looked directly at Umbridge, and imagined her being sacked. Expecto Patronum! The silver stag erupted from the end of his wand and cantered the length of the hall.
J. K. RowlingThere was a horrible smell in the kitchen the next morning when Harry went in for breakfast. It seemed to be coming from a large metal tub in the sink. He went to have a look. The tub was full of what looked like dirty rags swimming in gray water. "What's this?" he asked Aunt Petunia. "Your new school uniform," she said. Harry looked in the bowl again. "Oh," he said, "I didn't realize it had to be so wet.
J. K. Rowling