I ban Jesse because what if you required another Room of Requirement as you entered the Room of Requirement.

I ban LST because the Room of Requirement would double in size, maybe? :/

I ban Jesse for, like me, not knowing.

I ban LST because Unicorn scraped my knees on the gym floor when I fell off of her at rehearsal today, and because I think that a Room of Requirement would form inside the Room of Requirement. *waves fingers around magically* INCEPTION!

I ban Heather because I want a TARDIS inside the TARDIS for a keychain. *Nods*

I ban LST because keychains always fall off my backpack and it drives me insane.

I ban Jesse because I gave up on key chains after 5th or 6th grade.

I ban Heather because I have too.

I ban Jesse because I don't have keys.

I ban LST because keys are cool.