A Friendly Ghost?

A couple of summers ago my mom moved into a new house. At the time my mom, two brothers, and her boyfriend were living with her and I was only there on the weekends. Of course, me, being a teenager and easily spooked, was initially already creeped out by her house. But soon strange things actually began happening.

For example, doors would lock on their own. The hallway door locked itself while my mom was in the bathroom. The basement door locked itself when we all swore up and down that none of us did it. My mother has to come into my room in the morning if she has work so I have to keep the door unlocked. One night, because the door was locked the day before, I took special care to make sure it was unlocked. But at 3 A.M it was locked again.

That's not the only strange thing though. The kitchen sink turned on by itself. I've heard voices in the basement when no one was home. My brothers books will get pulled off their shelf when they were positioned in a way where you have to pull them straight out to get them off of the shelf.

When you sit in the living room, you can see into my bedroom. One summer day when I was home alone I thought I saw a shadow of a man in there, but when I looked closer he dissolved. That was also the same day I heard voices.

We were still getting mail from the previous owners and we soon took notice of their last name. It was the same last name of a recently deceased police officer name Eric. Now, we don't know for sure if it's the same family, or even if he lived in that house, but I still have the habit of referring to him as 'Eric'. He hasn't done anything to hurt us, just messed with us a bit. I kind of really want to get a Ouija board and see if I can communicate with him, but I also don't want to make him angry.

This is the first story I've posted on here, but there are a few more I'm going to be posting.