From publisher blurb:
Rules-Lawyers are an unexpectedly hardy breed of disgusting humanoid (at least in physique) creature. To all outward appearances they are a normal human being, like you or me, and it is only by their strange behaviour and very close (often post-mortem) physical examination that they are revealed to be anything other than Homo Sapiens. Scholars are in agreement that Rules-Lawyers have been around at least as long as games of any kind have existed.
Some go as far as to say they have existed as long as rules themselves have existed in this universe. They are said to have lived among us, alongside man and his more primitive and slope headed ancestors since time itself began, waiting for them to lose interest in football and develop the wheel.