"Hmm?" he glanced to her absently. "Oh! Oh, well, I...." he frowned, straining to retrieve the memory. "Good Godric, I was.... Well.... I was about.... five..... and I somehow ended up on the roof of Privet Drive without fully knowing how I got there. Vernon had to fetch a ladder just to get me down!" He tensed. "That was the first time he was ever mad enough at me that it frightened me."