"All my black friends have a bunch of white friends. And all my white friends have one black friend." - Chris Rock
Fun fact: A long time ago, there was this viral site called “Black People Love Us!" that mocked the concept of the "black friend." You know who made that site? BuzzFeed founder Jonah Peretti (along with his sister, who is now a famous comedian). It was one his first experiments in contagious media. It worked.