system
A chat on 4chan
human
>as a kid
I had an ear ache so i was half sleep on my bed, couldnt lay so was sitting with blanket right up to my nose
Room was dimly lit.
At midnight i wake up and opened my eyes alittle bit and there was a 4 feet shadow in the corner of my room
I thought it was the laundry bucket that used to be there....
But then it started moving.
Like a man was doing that frog walk.(sqatting and stepping)
As it happened, I sat up instantly rady to scream 'a burglar'
But as i sat up. It saw me and flew to the other corner of the room and disappeared. 
I went crying to my parents room but no one believed me.

>as a teen
I was in my cousin's new home. After a party, he slept in his room and i stayed up playing ps3 in living room, lit only by a street lamp .
Light coming in through white thin curtains.
I shut the ps and went to sleep on couch and hear sound like a tiny rock hitting hitting the glass window.(nothin major) 
I turn and there i see a silhouette of a person walking across the curtain window. 
My first thought was its a shadow of some one in the street onto the window(not possible to happen)
Then the mf reached the edge, and turned around. As he did that as if he was inside the house and touching the curtain.
The curtain started moving!
I said 'HEY!' And it stopped, turned at me and POOF disappeared.
I shat my self.
Went under the blanket (for protection maybe) and phoned my cousin 'I saw some thing- I saw something'
And my cousin's reply was OG- He said 'Sure u did saw something, just dont tell me about it, youll be gone by tomorrow but i have to live in this house so I want to believe you are bullshiting and if there is really something I want to see for my self before i regret this purchase. Come sleep in my room for the night........nigger

>I never want to experience those shadows ever again
gpt
Sounds like shadowmen. They feed on fear, but are pretty cowardly for the most part.