This happened to me here in poland a few months ago. It was on a saturday and I was coming down in my elevator to the front door to go out. (I live in a apartment complex). So I go out of the elevator and right next to me is this long flight of stairs. I'm about to touch the door when I hear the sound of footsteps going down the stairs. It sounded like sandals.
I turned around (I don't know why) to find no one was there. Now I have to say that it was 7 in the morning and where I live there's a bunch of old people and not many young people. Everybody sleeps this early on a saturday. Plus I heard footsteps going down I didn't imagine it. All I know is that when I turned around and saw no one there I just looked blankly at the stairs felt all creepy and then I don't know why, felt like I needed to get out of there quick.
So I ran out of the building. I never felt so scared. That isn't all really sometimes when I go down the stairs there I quickly go back up as if I'm really scared. I have tried to see if someone has died in my apartment complex but so far as I see I don't think anyone has.
Can someone help me here? I'm pretty lost and I want to peacefully try to go down those stairs. Also I don't want to look like a idiot in front of my friends again.