Burger King: Whopper Sacrifice
Whopper Sacrifice was a simple idea. We challenged Facebook users to "sacrifice" (publicly de-friend) 10 friends on Facebook to prove their love for the Whopper. Complete the task and earn a coupon for a free Whopper of your own. Over 230,000 online relationships were ended due to the taste of our flame grilled goodness. We would have continued the but Facebook demanded we disable the public un-friending feature. In the end, we sacrificed Whopper Sacrifice.