Boy, that was a strange one. I was transfigured into a cat/human hybrid by a potion that I'd cooked for a fortnight in a haunted bathroom. I remember the whiskers as clearly as if it happened yesterday. I spent most of the time hiding in a bathroom stall, but then went to the hospital wing with Harry and Ron.
For the cleverest witch in our year, as some have called me, I sure wasn't smart when it came to telling the difference between cat hair and human hair.