civil law, and in Louisiana. The avoidance of a sale on account of some vice or defect in the thing sold, which renders it absolutely useless, or its use so inconvenient and imperfect, that it must be supposed that the buyer would not have purchased it, had he known of the vice. Civ. Code of Lo. 2496. Redhibition is also the name of an action which the purchaser of a defective movable thing may bring to cause the sale to be annulled, and to recover the price he has paid for it. 2. The rule of caveat emptor, in the common law, places a purchaser in a different position from his situation under the like circumstances under the civil law; unless there is an express warranty, he can seldom annul a sale or recover damages on account of a defect in the thing sold.