Stilk v Myrick (1809) was decided on the enforceability of contractual modifications made under duress. Sailors demanded extra pay during a voyage, claiming unforeseen difficulties. The court's decision settled on the necessity of consideration for contract variations.
Contractual Consideration: The case examined the importance of consideration in contract modifications. Without new consideration, promises made under existing contractual duties are generally not enforceable, highlighting the necessity for fresh terms to support any variation in the agreement. The ruling clarifies that fulfilling or promising to fulfil an existing contractual obligation does not constitute valid consideration for a new promise.