This isn't exactly a scary story, but it is both true and rather bizarre.
When I was 7, both of my grandparents died of cancer. My grandma died in May, and my grandpa died in September. Both passed away in their home about 50 miles northeast of where I lived and went to school. On the day my grandpa died, I was getting ready for school at my aunt's house which was next door to the school I went to, when I saw my grandpa's head floating about 5 feet above the ground in the unlit front room. I was shocked by the sight and fell back into the next room, screaming. My aunt's dogs barked at the head just before it disappeared, then came to comfort me. A few hours later, my mom and another aunt picked me up and took me to my grandparent's home before telling me that my grandpa died.