"There are, in my judgment, a number of reasons why the plaintiffs' claim in contract must fail. First, although the Specialist Foster Carer Agreement had a number of features which one would expect to find in a contract, such as the payment of an allowance and expenses, provisions as to National Insurance, termination and restriction on receiving a legacy or engaging in other gainful employment and other matters to which the judge referred... I do not accept that this makes the agreement a contract in the circumstances of this case. A contract is essentially an agreement that is freely entered into on terms that are freely negotiated. If there is a statutory obligation to enter into a form of agreement the terms of which are laid down, at any rate in their most important respects, there is no contract: see Norweb Plc v. Dixon [1995] 1 W.L.R. 636, 643F."