I have ready basically every story featured on the site and some seem terrifying, but all in all my experiences have been quite calm except for a few. I have many stories that could fill a book and it's up to you to believe me, but here it goes:
My first experience was when I was about 12 or 13 years old. My best friend had come over to spend the night, but at my parents house we really didn't have a bedtime so we were up at all hours of the night. We had decided to watch T.V. in the living room while we laid on our bellies on the floor. It suddenly got a little chilly so I grabbed a white sheet that was laying on the couch nearby (my mom was a nurse so she brought these sheets all the time).
After about half an hour of watching I noticed there was a small someone or something in between us sitting Indian style underneath the sheet. I automatically thought it was my brother or sister trying to hang out with the older kids (like always). So I screamed, cursed, and told it to leave (still thinking it was my sis or bro) until both came into the room and told me to shut up. I then thought, by chance, my friend had her foot up and was creating the illusion.
I tapped her on the shoulder and said
"Tina, can you put your foot down because it's letting the draft in the blanket?"
She looked at me puzzled and said
"My foot isn't up!"
"then what is that ?" I said in a quiet little voice.
We both at the same time slowly turned our head towards the figure and could see the perfect outline of an obviously small person sitting facing the TV between us. Naturally we jumped, screamed, and threw the blanket covering us up in the air only to see it fall flat on the ground.
Needless to say, my best friend never came back over and told everyone in school that I had a haunted house.