I'd be willing to bet dollars to donuts that when Twitter user Laura Ellen tweeted about her love for both Kit Kat candy bars and Oreo cookies, she didn't think she'd be lighting the fuse on hilariously sweet-natured social media feuds.
After Ellen tagged both Kit Kat and Oreo's Twitter feed, Kit Kat dropped the gauntlet against Oreo to an epic Twitter Tic-Tac-Toe competition. Kit Kat kind of cheated the social media feud by claiming the middle spot right off the bat, before Oreo even accepted the challenge. Since Oreo wasn't about to stand for such blatant cheating tactics, its response, featuring a devoured Kit Kat bar in the middle spot of the Tic-Tac-Toe board, is the stuff of Twitter legend.
It's really neat to see competing brands interacting with customers in such a sweet and funny fashion. It puts a human face and personality with the brands that they're using social media to promote in the first place.