J.k. Rowling said this quote

“ Harry moved toward the fire, butjust as he reached the edge of the hearth, Mr. Weasley put out ahand and held him back. He was looking at the Dursleys in amazement.“Harry said good-bye to you,” he said. “Didn’t you hear him?”“It doesn’t matter,” Harry muttered to Mr. Weasley. “Honestly, Idon’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 saidto Uncle Vernon in mild indignation. “Surely you’re going to saygood-bye?”Uncle Vernon’s face worked furiously. The idea of being taughtconsideration by a man who had just blasted away half his livingroom wall seemed to be causing him intense suffering. But Mr.Weasley’s wand was still in his hand, and Uncle Vernon’s tiny eyesdarted to it once, before he said, very resentfully, “Good-bye, then. ”