ESL Discussion

In order to follow a discussion about horror movies and scary things, I am going to post something about supernatural events.
I consider myself as agnostic person.I do belive things happens for some scientific reason, some times known, and others not.
In spite of my believengs, some things do exist and happens without a reasonable explanation. These events could have an explanation
about physics events or sight distorsions but others are very hard to explain, specially from people like me, and I would like share
few.
A years ago, I was working as a security guard in a milk company in Xalapa, Veracruz, México, my home town. One nigt a was calling
by phone to one of my old friends and suddenly I heard the sound of a chair scratchin the floor. I adress my sight right where
the sound was coming from and I see a chair in the middle of the hallway but I could swear that chair wasnt there before and I was alone in the building.
Other day in the same milk company, i was walking around the buildings limits doing my check list and veryfing that everething was
ok, and I heard a forklift alarm sound. The forklift was inside of a locked werehouse. But the thing was further of a simple explanation
because that forklift didnt have any speaker that could emit any kind of sound. What was it then? Where that sound come from in the
forklift. I never knew that. And I never tryied to find out.