If you are going to do a ouija board then it is at your own risk. I have been practicing witchcraft for about three years now and I must still always carry out a protection ritual before I do a ouija board. Remember that all of the people in the room while doing an ouija board are going to be involved in the final consequences.
The first time I ever tried an ouija board was in my friend's house. After it, things in his house started to move around, and he woke up every night hearing voices speaking an unknown language. About two weeks later all the windows in his house smashed and objects inside started to catch on fire by themselves.
If you ever decide to use one, always research a banishing ritual. A good web site is www.spellsandmagic.com, take a look.
No matter what anyone says, always smash the glass at the end of the session, if you don’t the spirit could stay around you and haunt you. Be careful. This is no joke.
They are dangerous, very dangerous.