Supernatural Occurances

Is there any scientific or mathematical evidence of clairvoyant or "supernatural" occurrences or phenomena? I know that asking this is trampling the definition of supernatural, but I'm curious if there are any cases like this. If you do answer, please cite a source.

People have observed supernatural occurances all the time.  It's more logical to accept them as part of an immeasurable system than to deny such a huge body of anecdotal testimony.  You might as well deny the Holocaust.