Using Ouija Board, Help, tips, tricks and experiences. Options

Hi everyone,
I never used Ouija board before - well - I never was interested in magick or supranatural until recently.

Some questions on the Ouija, why does it suggested to have a minimum of 3 operator? If I ever gonna try it, I'd likely do it alone - tips and tricks pls?

Anything "bad" ever happen to you when using Ouija? I get the impression that Ouija, only deals with spirits of the dead - and not demons and other unborn entities. Is this so?

With a ouija board and also a seance is be very carefull, using incence and be a good way to enchance your experiance and can also help to ward of any particulary malevelent spirits/energies such asfrankincense and sandalwood also burn mugwort and keep it burning during then after, step over it, this will deture spirits from following you.
other protection charms like that should be set up to ward of malevelent spirits/energies but if the spirit/energy is truely benevolent then these shouldnt hinder it.

One thing also is i very much disagree with these tv shows meddeling like most haunted, where they take a group of people to a place for instance a house where a psycotic man tourtured and killed people then himself, the group then try and contact someone for the sake of a cheap thrill. SERIOUSLY GIVE THESE A MISS.