He took a moment to wander away from the gargoyle, wracking his brains and checking the map for Umbridge (he found her outside of her office, no doubt dealing with the swamp that Fred and George had left for her) and for anyone else close by. He checked his watch - he had only been guessing for ten minutes  but  it felt like an eternity. Staring out of the window, hands on his hips, his toe tapping on the ground, and his eyes fixed on a stray firework in the shape of a Unicorn galloping around the tower opposite, he tried to think what else Dumbledore might possibly chose as a password. Was there some rare sweet Harry had never heard of that was secretly Dumbledore’s favourite?