Mistake (contract law) void. Traditionally, Caveat Emptor (let the buyer beware), and under Common Law Caveat Venditor (let the seller beware). A contract might be voidable from unilateral mistake for any of the following: A mutual mistake occurs when the parties to a contract are both mistaken about the same "material" fact within their contract. They are at cross-purposes. There is a meeting of the minds, but the parties are mistaken. Hence the contract is voidable. "Collateral" mistakes will not afford the right of rescission. A collateral mistake is one that 'does not go to the heart' of the contract. For a mutual
Beware of the dog a sign does not relieve the owner of responsibility for any harm which may come to people attacked by the dog. Beware of the dog Beware of the dog (also rendered as Beware of dog) is a warning sign indicating that a dangerous dog is within. Such signs may be placed to deter burglary even if there is no dog. Warning signs of this sort have been found in ancient Roman buildings such as the House of the Tragic Poet in Pompeii, which contains a mosaic with the caption "cave canem" (). Some suppose that these warnings may sometimes have