i suggest u read this and it MAY help
http://forums.astraldynamics.com/viewtopic.php?f=37&t=1419
u can also try getting robert bruce's book (which may work for
your friend's case)
http://en.wikipedia.org/wiki/Robert_Bruce_(author)
Practical Psychic Self-Defense: Understanding and Surviving
Unseen Influences
Energy Work: The Secret of Healing and Spiritual
Development
Astral Dynamics: A NEW Approach to Out-of-Body
Experiences
try looking for this books at kinokuniya at taka and hopefully
they have the practical psychic self defense book if not must order
it
this is the best i can help u for now...