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 (Millennium) the role of Frank Black, and of the two lead roles in "The X-Files". "Beware of the Dog" features the first appearance by R. G. Armstrong as The Old Man, a recurring character who would reappear in the two-part episodes "Owls" and "Roosters". Armstrong has been described as "a long-time favorite" of Morgan's. The episode makes use of Bobby Darin's song "As Long As I'm Singing" in a diegetic manner. Darin's music has been noted by "Millennium" resident composer Mark Snow as a hallmark of the works of Morgan and Wong. "Beware of the Dog" marked the pair's first use