Hello:
Well, there is no way to know if the characters believe in that unless the subject is treated in the serie and/or a movie. As for strange happening in our actual world, I've seen things, but since I am a scientinst in training I cannot really tell you... and I think nobody could ever tell for certain unless you can experiment the phenomenon yourself.
But, as I said, it can add some cool additions to a plot in fanfics.