Hagrid mentioned he`s allergic to cats in PS why has he never sneezed when Crookshanks was around?
JK Rowling replies -> He's never around Crookshanks very much. I'm allergic to cats and I can be in a room with one briefly. But of course, Crookshanks isn't all cat. Read 'Fantastic Beasts...'!
I flicked through 'Fantastic Beasts.....' and found that the Kneazle is a cat-like creature who is intelligent and able to spot suspicious people. They can interbreed with cats and can be loyal pets if they take to the wizard owner. They are also good at getting their owner home when lost. It seems that Crookshanks is part kneazle to me and this has to come out somehow. Maybe Hermione gets lost and Crookshanks helps her back to Hogwarts.
(For full chat click below)
http://www.the-leaky-cauldron.org/JKRWorldBookDay2004.html