Hi Ian, I've got Angharad Warbeck who is probably a huge thorn in Myrtle's side. I'm sure as she's a Gryffindor girl who clearly isn't settling in, I'm sure she's been fobbed off on the Gryffindor matron more than once. So far, she's decided not to go to certain classes she considers useless, gutted rabbits in the castle, set out snares to catch rats in the castle, rowed with and threatened to kill a house elf on the stairs, and probably had a bunch of detentions. On top of that, she has the literacy level of the average six year old and is unfailingly obstinate with authority figures.