 In the case of a threat directed at property (duress of goods), the courts have required an unequivocal protest at the time of entry into the transaction.In addition to rescission and restitution, the threatened party may recover damages in delict for any loss caused through entry into the contract.Undue influence is also a form of improper pressure brought to bear upon a person to induce a contract, but the pressure is more subtle, involving as it does, without any threat of harm, an undermining of the will of the other party.