My very first nursing job was at an Assisted living facility. While doing med pass on the 2nd floor of the facility I would always see a Dark figure out of the corner of my eye coming down the hall, I would look up to see which pt was coming for their morning meds, as I would look up the dark shadow would disappear. later I was talking to another nurse who worked that wing and they too said they saw the same shadow. They say when a person passes you should open a window to set the soul free. Sadly we had pt pass on that wing of the unit to pass prior to me accepting my position, and unfortunately the windows in the facility did not open on the 2nd floor.