A.E. Pessimal

A.E. Pessimal is a character in Terry Pratchett's Discworld series.

Pessimal was a government inspector assigned by Lord Vetinari to inspect the Ankh-Morpork City Watch and judge whether the Watch gave fair value for the civic funds it used. Commander Vimes swore him in as a Special Constable for the duration of an impending street fight of roughly a thousand trolls and dwarfs, thinking he could scare Pessimal while showing him what it was like to be a watchman. Instead, Pessimal took his position seriously, to the point of bare-handedly attacking and trying to bite a Troll who took a swing at Vimes.