In 1995, Pepsi had started a campaign called 'Drink Pepsi, Get Stuff', one that enabled customers to earn points on every Pepsi merchandise they purchased and then exchanged for things like Pepsi branded t-shirts and hats. The commercial for the effort also said a Harrier Jet would be given for 7 million points.
This caught the eye of 21-year old John Leonard. He subsequently consistently gathered 7 million points and sent Pepsi a plea to send him the Harrier jet. The response of Pepsi proved to be a weird one, where it said that the advertisement was a joke.
This irked Leonard, and he decided to sue Pepsi. Nothing concrete happened with this particular case as well as the court granted the verdict. It ruled "no objective person could fairly have concluded the advertisement offered consumers a Harrier Jet." Thus, refusing Leonard's every claim.