My cousin Paul told us about his haunted river house (yes, my dream home is haunted). When they were doing some remodeling, they dug up the old family grave site, including Sarah's grave. They relocated everyone, but Paul liked Sarah's 18th century headstone so much that he moved it into the house to be part of the decor. After he brought it into the house, strange things started happening . The family would hear weird noises. Closed doors would be open. Things that were set in one place would be found in another. Music would come on in the middle of the night. Paul set up a place in his basement for the guys working on his house to sleep in because the house is out in the country and it was a really long commute for the construction guys. The first night at the house, the guys all left in the middle of the night and refused to stay there again because, in their words, "We're not staying here. Your house is haunted!" Finally, Paul had Sarah's headstone redone and replaced it in the front yard. He also found a headstone of a Spanish conquistador to be her "boyfriend" and put his headstone in between Sarah and the house. He hasn't had any problems since.
Paul related all this to us - and he believes every bit of it.