This happened back in August 2006. My friend's name is Aya (a name she hates, so she goes by Kaze), and she was 11 and 8 months old at the time; I was 12 and 1 month old.
On this specific summer night, I was at a sleepover with my best friend, Kaze Takahara. We had eaten our dinners, and were watching television, it was really late and we were acting all cool. Suddenly she says, "Let's go to my room..."
Off we go, and then about half an hour later so - around 9:30 - I left the room and ran back in with a faked terrified look on my face, she asked what was wrong with me, and I said to her in a low hiss that someone was looking in the front door, and the handle was turning. The first thing she did was jump onto her bed and hide in the corner. I told her to pull herself together and asked if the door was locked. She said it was, so I calmed down a bit. (Her step-father, I think it was, had a criminal record, and he knew where she lived.)
By this point I started to snicker, because I was only kidding around. So I basically freaked out when she said, "I will go see if you're telling the truth or not, Melissa!" She leaves the room, and comes back in looking like she'd just seen a dancing zombie banana (sorry for the humor...). She said that there was no-one at the door, but there was someone at the window.
Kaze could see through the curtains because they were cream-colored with the moon behind them. I told her that I was only kidding, and she said, "You were? I'm telling you Melissa, there really is someone at the window!"
We fled into her wardrobe, which faced her glass door. She made sure said door was locked; we stared at the see-through door for what seemed like hours, when suddenly I noticed she was asleep on my shoulder. I fell asleep after that, when I woke up it was morning, and I could smell breakfast cooking. I left the wardrobe and saw that my friend's nightstand was knocked down, and that her lamp was broken. Kaze came in; she told me to look out her door, (outside her door she has a bottle collection to earn money) and all the bottles were knocked over, smashed, and shattered everywhere.
We later figured out that it was because of an Ouija summoning we did earlier that day. Right after I came over, her grandmother was messing with an Ouija board saying this weird chant that sounded something like "Tata Kayana Tuma Tuma Ahroooh, Beswish Tata kara Maru Sayana Shaderka". How did I memorize it all? Because her grandmother followed us with the Ouija board saying that same chant all night.
She told me - and I have NO idea if this part is related to the ghost that smashed the bottles - that in the middle of the night, she got up to go to the bathroom but she saw something black next to her nightstand and she didn't leave the wardrobe. She also said that she heard sinister cackling, and that she actually saw her nightstand being knocked down by an entity (I asked her, but she wouldn't disclose any details). Her dog entered the room during one point of the night, and began barking at something (she wouldn't explain this, which made me skeptical of her statement).
Later, in '07 (on Halloween, to say the least), we (as in Kaze and I) were sitting on the couch, eating popcorn and watching Ju-on: The Grudge when from the corner of my eye I see someone walk past the glass door. So I freak out a little because it was 3am and we were the only ones home, so I tell her "Hey someone walked by..."
Since Kaze lives in the country, and her closest neighbors are a mile away, I thought maybe I was just seeing stuff so we shrug it off and continue watching Ju-on when her dog starts barking and runs outside. Kaze gets up and goes outside to see what's wrong and the dog comes back inside whimpering with a bandana around its neck. Her dog didn't have it on its neck when it left so we locked all the doors and shut the DVD player off.
Comments, questions? Say whatever you want, I am not a Thought Police. Or whatever they're called.