Fable
People who hand over keys by the month and people who rent scaffolding by the day
Old Qian had two shops on the commercial street. One was a key shop, which he ran himself and staffed with one assistant to watch the store. Next door was a scaffolding rental business owned by a man named Sun, who only rented out equipment and did not take on building work.
One day a customer walked into the key shop and said he wanted a special lock made. Old Qian took the payment and had his apprentice make the lock, and the customer took it away. Two weeks later, the customer came back complaining: the lock was fine, but the door hinges were also broken and the door wouldn't close tightly. Old Qian said: I only handle locks, you'll need to find a carpenter for the hinges. The customer was unhappy but had no recourse—the payment only covered the lock.
The same customer later came to Boss Sun to rent scaffolding, saying he wanted to renovate the exterior wall on the second floor. Boss Sun asked him: How many days do you want to rent it for? Do you need delivery? Do you need my people to help you set it up? The customer chose the full package, so Boss Sun sent two workers, set up the scaffolding, collected the rental fee and labor fee, and left. Three days later, the scaffolding wobbled, and the customer called to complain. Boss Sun said: When you rented it, I was only responsible for the condition at the time of delivery; daily safety inspection is your own responsibility.
Old Qian and Boss Sun drank tea on the street corner and talked about these two matters. Old Qian said: We are in the same trade—both serving customers. Boss Sun shook his head: You sell an outcome, I rent a tool. Your customer is dissatisfied because you gave only part of the outcome. My customer is dissatisfied because he thought renting the tool meant the outcome was included.
Old Qian thought it over for a long time and finally figured it out. He changed the charter of the key shop: there were now two business lines. One was called “cut keys,” where the customer took the lock and left, with no concern for what came after. The other was called “manage doors,” charging a monthly fee that covered all door-related maintenance—locks, hinges, frames, seals, everything.
After the new business launched, complaints dropped by more than half. Old Qian's lock did not suddenly get better; the change happened after the contract boundary was clarified in advance — are you buying a door that is continuously maintained, or are you buying a lock.
Boss Sun also changed the applicable definitions and criteria: renting scaffolding means specifying how many days, how far it will be built, and what condition it will be in at handover; if you want safety inspections included, that is a separate contract called "site managed services," and the price is different.
Later the old shopkeeper separated emergency visits and regular consultations in billing: a single visit had its own account, long-term care had long-term responsibility. Customers also knew whom to approach.