Sorry for any grammar mistakes or stuff like that, I'm from Germany. Well, I'm 26 by now and just discovered this site, so I'll take the chance and share some experiences I had as a child.
I can't remember how old exactly I was, but I still slept in a cot. One night I woke up, stood up and looked at my door. My cot was right next to the door, so I wouldn't look at the opening there but at the door itself once it was opened.
I don't remember why I woke up or what made me stand up exactly, all I know is that a black figure suddenly came in. It didn't take more than three seconds to open the door, shove me back so I fell on my behind, and close the door again. It made some kind of a hissing noise. Not exactly hissing, maybe like a static sound, it's hard to describe, and was gone in an instant. It didn't have any specific outlines, it was just... A black blur, human hinted. But it was not a dream, for I remember my back and my chest hurting from the shove. That was the most vivid memory I have of it, but I know that it came at least two times again.
If you wonder how I was able to see a "black figure" in the darkness, I had a very bright night light attached next to the door, so I saw it quite good against it.
One time I spoke to it, it was more slow. It was the day my favourite videotape was ruined, and my Dad told me I could never watch "Heidi" again. Maybe some of you know it, the Anime-version of the TV-series. Whatever, I cried and was totally unhappy because of that the whole day, but well.
At night I woke up again, came to a stand and something was in my room, opening my door and just... Being there. I remember telling it "I want my Heidi. Can you help me watch Heidi again?" but I never got an answer. No, the tape was not repaired the next day, before any of you ask;)
I don't have a picture of this second meeting in my mind, don't remember what the figure looked like, nothing. I just remember that I told someone my two sentences, and it wasn't just the darkness I talked to. There was something there.
Well, I don't know what you think of this, but I would like to hear some of your opinions over this. I'm really sure I did not dream it, for as I said, my chest and my back hurt back then.
I also had another bad experience in my room. I will post it in another story.