This is what happens when you publish a summary of data: datapoints that don't fit come drifting in. Turns out there was a toilet-negative review, on Guys Lit Wire, quite unquestionably male-written: http://kris-reisz.livejournal.com/58145.html thus putting us in the realm of stochastic rather than iron rules.
why not to have that third beer at breakfast: An earlier version of this note referred to a "negative review", which this was not. The review was mostly positive, it was "toilet-negative," i.e. didn't like that toilet thing, but otherwise generally praised the book. Coherence I would attempt but succeed not I would.