That idea is an automation which neither depends on Bitcoins nor entails any of the protections of a contract. How does the contract guarantee that a lawnmower

That idea is an automation which neither depends on Bitcoins nor entails any of the protections of a contract. How does the contract guarantee that a lawnmower was dispatched and successfully arrived, and did its job? What recourse does the client have if they don't feel that the job was well done, and how can the contract guarantee that protection? Those are contract questions.