To make someone leave a room you may: recite goth poetry; make an empty threat; threaten someone; make vulgar thrusting motions; use a machete wielding serial killer; drop your pants; pull your underwear out of your pants; use the force; show them the goatse; be a space cadet; use the full power of your THX sound system; channel surf; the Sam Raimi; call in a favor from a friend.