Informal case applications often enhance our understanding of an economic principle’s breadth of import in everyday life, as well as whether the principle may be acknowledged and used in a manner that facilitates decision-making of businesses and consumers. The present study contributes to the case study literature by extending the work of others on the economics of the classic television sit-com, Seinfeld. More specifically, our extension focuses on several law and economics concepts, particularly concepts related to product liability, included in the sit-com that are of particular interest to businesses and consumers.