At first I thought someone was playing prank, but it's 3am in
the morning, I could hear a pin drop at that time. But the shadowy
figure that sprinted off so fast, there were no sound of footsteps.
That's why I didn't went into the trees to investigate further.
Thereafter, whenever I pass that area, I will get goosebumps all
over.
Sometimes, when I'm all alone doing my work because my
colleagues are in the other rooms, and if I see / sense something,
I will usually try to ignore it and mumble under my breath to leave
me alone, I'm just trying to get my work done. 
I had a very very frightening encounter once that spooked my
colleagues too. We had a long-term patient, an elderly
Chinese lady who's lost her wits and is crazy, stay with us for a
long time. Because she was nuts, we had to restrain her and
she used to scream and yell and kick and curse at us. Months
later, after a few hospital admissions, in and out, she passed away
in our ward. A few days later, when I was working nights, I
was writing my report when I drifted off to sleep without realising
it (I was still holding my pen upright 
).
I saw her standing at the corner, pointing at me and scolding me
for restraining her. Then like a ghost, she moved closer and
closer to my counter!
Suddenly, I gasped very loudly and snapped out of it. My
colleagues at the counter were alarmed, all looked at me and asked
me what happened. 
I told them
and they said, if I see her in my dreams again, just tell her that
she was crazy so no choice, we had to restrain her lor.
