Back in 2009, Burger King came up with a rather unusual marketing idea that certainly managed to obtain some publicity. Well aware of the impact that social media was having on the world, they decided to try to get in on the act in a unique way.

Their aim was to convince people to unfriend 10 people, and when they did this, they would then qualify for a free Whopper. Not only that, but the individuals who were then no longer your friends would be sent a message stating that their friendship was worth less than a Whopper to you.

For some, it was genius. For others it was crude and slightly unfair to individuals. However, it made the kind of mark that Burger King was looking for, although they have not repeated the stunt since then.