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.
        -- (Terry Pratchett, Feet of Clay)