A residual haunting is a playback of a past event. The apparitions involved are not spirits, they are "recordings" of the event. While there are many theories of how these hauntings manifest, most believe this is usually due to a traumatic event that occurred to the ones once living in the location. While somewhat similar to an intelligent haunting, what sets this type of haunting apart is the absence of interaction with the living. These types of hauntings are very commonly described as footsteps, breathing, possibly an apparition. But, with all of these there is no interaction. While sometimes you may hear or see a door slam or a window open, this is just from the expansion of the energy. You will not notice things missing and reappearing and the spirit will not acknowledge anyone around.