We must live in countries with wildly different legal systems. Here in the United States, contract law includes concepts like unenforceable clauses, duress, la

We must live in countries with wildly different legal systems. Here in the United States, contract law includes concepts like unenforceable clauses, duress, lack of capacity, etc. Many of those concepts are related to the concepts of fair/unethical, and have plenty of bearing on whether the contract can be enforced, even after it is signed.