Diet Coke's Anti-Starbucks Ad Finds Perfect Home On Wall Outside Starbucks

Here in NYC, there are countless surfaces available for slapping your ads onto. So for its slam on Starbucks, the folks at Diet Coke picked the perfect spot: on the same building as Starbucks.

Anyone have some clever suggestions on how Starbucks can retaliate?

Coca Cola Asks: Who Has Time to Stand in Line at Starbucks? [Eater.com]