the promisor to accept less. A leading example is in Stilk v Myrick where Stilk, a seaman, agreed with Myrick to sail his boat to the Baltic Sea and back for £5 per month. During the voyage, two men deserted. Myrick promised he would increase Stilk's wages if Stilk agreed to honour his contract in light of the desertions. Stilk agreed and on return to port, Myrick refused to pay him the extra wages. It was held that Myrick's fresh promise was not enforceable as the consideration Stilk had provided for it, the performance of a duty he already owed to Myrick under contract, was not good consideration for Myrick's promise to increase his wages. Initially, there were only two exceptions to this rule:Hanson v Royden, the promisee has done, or has promised to do, more than he was obliged to do under his contract.Hartley v Ponsonby before the fresh promise was made, circumstances had arisen which would have entitled the promisee to refuse to carry out his obligations under his contract. Factual benefits However, the strictness of this rule was severely limited in Williams v Roffey Bros & Nicholls (Contractors) Ltd. The Roffey Brothers entered into a contract to refurbish a block of flats for a fixed price of £20,000. They sub-contracted carpentry work to Williams. It became apparent that Williams was threatened by financial difficulties and would not be able to complete his work on time. This would have breached a term in the main contract, incurring a penalty. Roffey Brothers offered to pay Williams an additional £575 for each flat completed. Williams continued to work on this basis, but soon it became apparent that Roffey Brothers were not going to pay the additional money. He ceased work and sued Roffey Brothers for the extra money, for the eight flats he had completed after the promise of additional payment. The Court of Appeal held that Roffey Brothers must pay Williams the extra money, as they had enjoyed practical benefits from the promise they had made to Williams. The benefits they received from it include: Having the work completed on time, not having to spend money and time seeking another carpenter and not having to pay the penalty. In the circumstances, these benefits were sufficient to provide consideration for the promise made to Williams of additional payment. It now seems that the performance of an existing duty may constitute