What is the strangest thing that happened to you at a cemetery?

I went to this very old cemetery a few years ago mid day. I was locating scouting for a film and I was taking pictures and looking at the graves. They were all for people who died in the late 1600’s to the early 1900’s. I can’t prove anything of course but I felt eyes on me the whole time. Nothing happened, but I remember stopping to brush some dirt off a few graves and offering respect and stuff. But it just gave me this feeling where your hair stands on end.