I will not claim to be a sensitive or even someone who is in touch with the paranormal world. But since young I have this random ability to sense and sometimes see 'friends' or entities from the other world. What I meant by random was, I can sense/see some days and totally oblivious towards it for a period of time (months or years) before suddenly I can sense them again. It comes and goes.
Enough with the background I guess. One of my most mind boggling experience happened when I was around 20. I chose to take a break for a year to work and earn money for university expense that time so I got this job in a boys' school in my hometown as a tutor for computer assisted learning (this was almost 7 years back). The school itself is one of the oldest schools in my state, the computer lab I worked in was on the first floor and furthest away from the other classes. It has this almost depressing vibe with the dim lighting, peeling paint and old looking windows.
I never feel a sense of dread when I stepped in as I usually will if the place is haunted. All went well during the first few months, until the monsoon season rolled in. The first heavy rain and thunderstorm I was alone in the lab, I sensed a presence in the room with me. Nothing much, just the hair on my neck stood up. I ignored it. As the days past especially on rainy days this presence make it self known even more. It escalate from a feeling of another person in the room with me, to faint shadow at the corner of the room until one day I saw the full form of this entity. An old lady, wearing rags drenched from head to toe, long hair standing at furthest corner of the room. I was freaked when I saw her that clearly, I pretended I need to go toilet and left the room. Only went in after the rain stop (thank god I have no class at that slot). I saw her again a few times, during heavy rain but not on normal days. I wonder why?