Little crimes breed big crimes. You smile at little crimes and then big crimes blow your head off.

In return for an agreed level of crime per annum the thieves themselves saw to it that unauthorized crime was met with the full force of Injustice, which was generally a stick with nails in it.

If you were going to be successful in the world of crime, you needed a reputation for honesty.

Sometimes the crime follows the punishment, which only serves to prove the foresight of the Great God."
"That's what my grandmother used to say," said Brutha automatically.
"Indeed? I would like to know more about this formidable lady."
"She used to give me a thrashing every morning because I would certainly do something to deserve it during the day," said Brutha.
"A most complete understanding of the nature of mankind,

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.

He's bound to have done something,” Nobby repeated.

In this he was echoing the Patrician's view of crime and punishment. If there was crime, there should be punishment. If the specific criminal should be involved in the punishment process then this was a happy accident, but if not then any criminal would do, and since everyone was undoubtedly guilty of something, the net result was that, in general terms, justice was done.