Professor, why couldn't we just Apparate directly into your old colleague's house?' 'Because it would be quite as rude as kicking down the front door,' said Dumbledore. 'Courtesy dictates that we offer fellow wizards the opportunity of denying us entry.
J. K. RowlingWhere is Wood?" said Harry, suddenly realizing he wasn't there. "Still in the showers," said Fred. "We think he's trying to drown himself.
J. K. RowlingIt has certainly never been news to me that a brave and brilliant man could love other men.
J. K. Rowling