I was walking down the street coming back from work one evening, when I thought I saw something behind me. I looked behind me and nothing, so I ignored it. Then I had that feeling again, looked behind me, and nothing. This went on for about 10 minutes. Then I realized something.
Street lights create shadows and my peripheral vision is good.
One of the pics I took last night had a light colored image on the wall with eyes behind the people in the picture... Haven't uploaded it yet but I will. Every girl at the party screamed when they saw the pic.