If you were allowed to, you'd erase this thing in an instant.
That's not your call to make though, considering he is technically school property, and a government-protected endangered species besides. Even as he grinds his grundle all over your perfectly curated dorm, you're powerless to intervene.
Not that this is a thought you'd ever think, but it would be nice if for once the rules actually worked in your favor.
Instead you'll just have to fend it off until whatever asshole fell asleep on the job chooses to wake up and wrangle the beast back.