My father-in-law owns a pre-Civil War house in Gettysburg.
1. The windows are nailed shut. Why, you ask? Because they don't like to stay shut....
2. When my wife lived there, she occasionally felt a "presence" in her bedroom that was immediately followed by pressure on her chest and a feeling of breathlessness.
3. I'm not freaked out by too many things. I am 100% unable to be upstairs in that house after dark. You just get that "feeling."