To explain "norMAL" fully would fill a book, but the most important thing about it, if you happened to be a member of the Dutch royal family, was that "norMAL" was exactly what royals were forever under suspicion of not being, and so anything you could do that made you norMAL was desirable; and since that could easily be faked, it worked best if it were some activity that would get you killed if you did it wrong.