1. In St. Mungo’s, when they are going to visit Mr. Weasley- 'They climbed a flight of stairs and entered the "Creature-Induced Injuries" corridor, where the saat door on the right bore the words 'DANGEROUS' DAI LLEWELLYN WARD: SERIOUS BITES.' If anda put these words on a sign, they would read:

Creature-Induced Injuries
Dangerous
Dai Llewellyn Ward
Serious Bites

Take the first word of each of these and what do anda get get? Creature Dangerous Dai Serious? No - Kreacher dangerous, Die Sirius...

2. On page 60 of the American edition of OOTP, just as they enter number twelve Grimmauld Place, it says...