It was Carrot who'd suggested to the Patrician that hardened criminals
should be given the chance to "serve the community" by redecorating the
homes of the elderly, lending a new terror to old age and, given
Ankh-Morpork's crime rate, leading to at least one old lady having her
front room wallpapered so many times in six months that now she could only
get in sideways.
(Feet of Clay)
--[discworld]--