Everything needs to be in order: all forks must go the right way, and don't even think about leaving even one cup in the sink. And if anything falls under their standards of what it is to be immaculately tidy, then you can guarantee that even if they notice something out of place at 3am, they will scrub every surface to eradicate any sign of dust. Or blood. Whatever. Are you suspicious that your room-mate might be a killer? Share your thoughts below in the comments, and, like, maybe call the police.