Quote Originally Posted by weelilhazel View Post
My dad's friend's daughter tried it, (she is schitzophrinic) and she couldn't tell dreams from reality.
I've mentioned this elsewhere but I'll do so again:

If you can't tell dreams from reality then, by definition, you ARE NOT lucid dreaming.

LDing had nothing to do with your Dad's friend's daughter's confusion. Schizophrenia itself is the condition that makes its sufferers have trouble distinguishing external reality from internal reality.