Anheuser Busch Inbev SA has been sued by a U.S. beer drinker who claimed he was duped into believing its Leffe brand beer was brewed in a Belgian abbey, rather than mass produced in an automated factory that also makes Stella Artois. The proposed class action lawsuit was filed Friday in Miami federal court by Henry Vazquez, an optometrist who said Anheuser's deceptive packaging caused him to overpay for Leffe beer, among them Leffe Blonde and Leffe Brune.