Prometeo said:
			
		
	
	
		
		
			When Laura tried the experiment with Frank and the others, they were not blank about it, they were already pretty well endorsed on the topic.
		
		
	 
Yes, they were.  Especially Laura.  She had been working not only on learning about channeling, but on herself - cleaning her machine, knowing her programs and weaknesses and getting those things under control.  She researched channeling for many, years; read all there was on it.
To give you an example of what she read, there is a section in the recommended reading list 
here.
Here's the list of books there:
Shamanism - Mircea Eliade
Cosmos and History - Mircea Eliade
The Sacred and the Profane - Mircea Eliade
Varieties of Religious Experience  - William James
The Afterdeath Journal of an American Philosopher - Jane Roberts
Magic: The Principles of Higher Knowledge - Karl Von Eckarthausen
Darkness over Tibet17.1 - T. Illion
The Darkened Room - Alex Owen
The History of Spiritualism - Arthur Conan Doyle
Book on Mediums - Allen Kardec
Many Voices: The Autobiography of a Medium - Eileen J. Garrett
Deviance and Moral Boundaries - Nachman Ben-Yehuda
Occult and Scientific Mentalities in the Renaissance - Brian Vickers (editor)
The Hermetic Brotherhood of Luxor - Joscelyn Godwin
The Secret Teachings of All Ages - Manly Hall
The Siren Call of Hungry Ghosts: A Riveting Investigation Into Channeling and Spirit Guides17.2 - Joe Fisher
Spirit Releasement Therapy: A Technique Manual17.3 - William J. Baldwin
Thirty Years Among the Dead17.4- Carl A. Wickland
The Unquiet Dead: A Psychologist Treats Spirit Possession - Edith Fiore
Life Between Life - Joel L. Whitton
Prophecy in Our Time - Martin Ebon
Evidence Of Survival After Death - Sir William F. Barrett and James H. Hyslop
Twenty Cases Suggestive of Reincarnation - Ian Stevenson
Power of the Pendulum -  T.C. Lethbridge
Encyclopaedia of Psychic Science - Nandor Fodor
Haunted People: The Story Of The Poltergeist Down The Centuries - Hereward Carrington and Nandor Fodor
The Haunted Mind - Nandor Fodor
Hostage to the Devil17.5 - Malachi Martin
Unleashed: Of Poltergeists and Murder: The Curious Story of Tina Resch - by William Roll and Valerie Storey
So how many of these have you read?
What Laura found is that for a couple of years all she contacted was "dead dudes".  Do you think you contacted anything higher than this?  
As has been said, you may have contacted something really bad that was acting like something good.  This is what they do.  And there is a very good chance that something bad could come through.  
Laura had a very good knowledge of what to expect and because of her hypnotherapy knowledge, and having done exorcisms, she know how to detect and handle things so nothing got out of hand.
People just don't realize how dangerous working with oujia board is for most people.  They don't connect using the oujia board then to bad things that could happen a bit later.  It really is Russian Roulette.