Fable
A county town has two books: one is an address book, the other is a land deed
Outside the south gate of the county town came a team of surveyor craftsmen, invited by the yamen to install a new set of accounting equipment. The yamen's requirements were clear: account books must not leave the county, and the equipment must be placed in the back courtyard warehouse.
The craftsman spent two weeks moving the boxes, cables and iron cabinets into the backyard, connected them to the county office's own power room and internal lines, and acceptance went smoothly. The contract stated: the equipment is local, and routine inspection is the county office's responsibility.
Half a year later, the county placed the same accounting equipment in a courier station inside the city. The station was close to the prefectural office and the lines were faster, but the iron cabinet was rented from the prefecture; the county's ledgers were still sealed by the county, yet the key to open the cabinet and the procedures for replacing parts had to go through the station. At first the magistrate was won over by the word "exclusive," thinking that as long as no one shared the ledgers, everything was in his own hands. It was not until a power outage at the station that the county office realized repairing the cabinet, replacing lines, and opening the door all required waiting for outsiders.
The auditor flipped to two contracts, one saying "local placement" and the other "exclusive use," with a price difference of forty percent, and slammed the table on the spot. The adjudicator spread both accounts out and explained: the former says where the equipment is placed and who repairs it; the latter says who owns the ledger and who can sign permission slips for adding, deleting, and querying. The adjudicator also admitted that both contracts had once been written ambiguously. Sellers like to blur "placed locally" and "only for you to use" into one thing, which sounds reassuring to buyers, but when problems arise, no responsible party can be found.
The auditor asked, can an instrument be local but not exclusive, or can a ledger be exclusive but not in the county office? The judge took him to see the iron cabinet at the post station: the ledger bore the county seal, but the cabinet body and maintenance belonged to the post station. The two things could indeed be separated.
Later, when the county office tendered, it asked suppliers two separate questions: if the courtyard wall loses power, who fixes it; if the prefecture wants to see the accounts, who can refuse. If the other party couldn't answer clearly, the county office knew the cheap price hid future quarrels.
From then on, procurement contracts had to be written in two columns: the physical location where the equipment is placed, and who owns the ledger, the keys, the right to operate, and the responsibility. With both columns clear, accounts would no longer be disputed for half a year over a single phrase "in this county." Later, at every acceptance, the auditor had to personally inspect two things: the ground beneath the equipment, and the authority at the head of the ledger. Miss one, and both price and risk would be miscalculated.