What Weird Things Do You Believe In and Why?

What “weird things” do you or did you believe in? Why?

Do you have personal biases which are more likely to allow you to believe in such “weird things”? If so, what are they? What concerns or questions might a skeptical critical thinker raise about this belief? Consider the difference between having scientific explanations to back up your beliefs and pseudoscience. Consider if there are issues with any statistics you use to back up your belief, e.g., small sample size or biased sample.