J.k. Rowling said this quote

“ Harry said good-bye to you,” he said. “Didn’t you hear him?”“It doesn’t matter,” Harry muttered to Mr. Weasley. “Honestly, I don’t care.”Mr. Weasley did not remove his hand from Harry’s shoulder.“You aren’t going to see your nephew till next summer,” he said to Uncle Vernon in mild indignation. “Surely you’re going to say good-bye?”Uncle Vernon’s face worked furiously. The idea of being taught consideration by a man who had just blasted away half his living room wall seemed to be causing him intense suffering. But Mr. Weasley’s wand was still in his hand, and Uncle Vernon’s tiny eyes darted to it once, before he said, very resentfully, “Good-bye, then. ”