I wish I never started reading.... Here's an example: WARNING please only read the following if you aren't easily freaked out.....
A SHARP BEND
by reddit user pistacchio
When I was like 10 or 11 I was going to the beach with my aunt and her friends. There were two cars of us. To get there we had to go through a very large industrial area. We didn’t know the direction, so our car was following the other. Suddenly, they did an unexpected turn and so our driver had to take a sharp bend.
In that moment we heard a very clear, loud voice inside the car saying laughing “Sharp bend, hm?!”. The driver immediately hit the brakes. We looked at each other, puzzled: we all recognized it as a voice not belonging to any of us.
In the very same time, we noticed that the other car has stopped as well. The other driver got out of the car with a scared face and shouted to us: “Did… did you hear that as well?”.
They heard the very same thing inside their car. The area around was full deserted.