For 2013's Halloween, there's an ad on the internet about a Pepsi can with a Coke costume, stating it's “scary”, to which Coca Cola responds with “Everybody wants to be a hero”.
So far, so good, but the only reference I have been able to find is both images side by side, with a “via 9GAG.com” legend on the side.
Considering that 9GAG is not a reliable source and anybody can upload images there, I'm skeptical about these ads. Are they real? Did Coca Cola really respond in such a way to Pepsi?