"Come on Tom," says movie preview Harry, "let's finish this the way we started it. You know, like jump off the tower? It didn't happen in the books but it's more cinematic. Of course no one will question how we also dived off Hogwarts when I was a baby. They didn't have a problem when the Death Eaters burned the Burrow, did they? It only made the whole point of a secret keeper redundant. I mean honestly if it were that easy you could have shown up and killed me like a hundred times. Who needs elaborate hedge mazes with port keys when you've got that?"