Take it from me, there's nothing more terrible than someone out to do the world a favour. — Terry Pratchett

They suffered from the terrible delusion that something could be done. They seemed prepared to make the world the way they wanted or die in the attempt, and the trouble with dying in the attempt was that you died in the attempt.

Of course, Ankh-Morpork's citizens had always claimed that the river water was incredibly pure in any case. Any water that had passed through so many kidneys, they reasoned, had to be very pure indeed.

These weren't the normal city watch, cautious and genially corrupt. These were walking slabs of muscle and they were absolutely unbribable, if only because the Patrician could outbid anyone else.