This happened for the second or third time in my quest to having a long lucid dream. I was dreaming about going into a portal that led to Japan 500 years ago. I was scared that if I entered, someone would kill me! Then I though "I'm dreaming, so I shouldn't think that [being killed] or it will happen!" Without getting lucid from this, I chose not to go in, and the dream went on.

I must say this is fairly frustrating, even if I am getting closer to having a nice, long lucid dream! But, just though I should share that. None of my friends will listen . Comment as you like of coarse.