We all have that well-meaning friend or acquaintance who thinks his or her knowledge of politically correct lingo and the current line-up of "ethnically-authentic" television shows automatically grants special membership to an ultra-exclusive club of hip minorities. 

There's always, for instance, that non-black friend with a penchant for racial slurs who blurts out "But my best friend is black!" any time he or she is accused of racism, the same friend who proudly declares "I watch 'The Wire'!" anytime a black person enters the room.