Having read this article make me wonder, do we (in Indonesia) have this syndrome?
The basic problem of this article by Mike Adams, quoted directly, is “A student’s grandmother is far more likely to die suddenly just before the student takes an exam, than at any other time of year.
Carefully read the article, and see the conclusions of the article. Mind you, this article is made by an expert doing a specific research. This is no joke, but the suggestions are really interesting. The conclusions are hilarious.