I'm Ernest Macmillan, but everyone calls me Ernie. It's only slightly less silly, but that's my parent's fault and not mine, so don't even bother. I'm not especially interesting, just an average Hufflepuff seventh year who's a prefect, plays quidditch and enjoys rock collecting. Some people don't think that geology is Real Magic, but if there are books written on it, it HAS to be. Just you all wait.
If any of you happen to come across any interesting specimens, as a side note, you can address them to me:
Ernest Macmillan Hufflepuff Dormitories Bed on the far left, rather in the corner Hogwarts Academy, United Kingdom