[Swishes around, finally facing Jack, and points at him for... some reason? Emphasis?]

Now look, I was here first! And I'm pretty sure I don't cause space and time to be all squished together into a tiny ball of... broken... stuff. Not without putting effort into it! Probably!

I am the librarian in this school, and the time-squishing witch is somewhere all the way in the future! Which'd be fine if I had the TARDIS, but I don't.