This Burger King campaign, which ran in the otherwise straightlaced city-state of Singapore in the first half of 2009, makes possibly the least subtle allusion to oral sex of any ad that wasn't pasted to the inside of a pay telephone booth. While the pitch may only appeal to half the population and make nearly everyone blush and uncomfortable it is certainly hard to forget. Did they cross a line? Probably. Burger King argues in its defense that the campaign was never intended to run in the U.S. Dissembling aside, the shock-and-awe approach isn't without its benefits namely, distracting people from the fact that BK is selling a seven-inch cheeseburger.