Heed my warning: the ghost will not stay passive forever. Over time as your team's sanity drains, the ghost will begin to perform actions ranging from messing with doors and lights to physically appearing to scare off unwanted company. It may even begin a hunt, which can be easily identified by the lights flickering nonstop. During a hunt, the ghost is looking to kill a player, so it is highly recommended you put as many doors between you and it as you can!