One night as I was heading back to my apartment, I walked up the stairs while looking down...

One night as I was heading back to my apartment, I walked up the stairs while looking down when I heard the door open. I saw someone's shadow coming out so I stepped the side, but when I looked up, no one was there. Ignoring the shadow, I continued walking up the stairs to my apartment.

These stories remind me of those random supernatural things that sometimes occur.