In early December, the better-burger chain Shake Shack partnered with Bark (progenitors of the popular dog-treat subscription service BarkBox) to offer an exclusive line of chew toys including Frenchie Fries, a Never-Melt Milkshake and--of course--a BarkBurger. "Perfect for your four-legged Shack fan," the company promised. Now, two months later, it's emerged that Shake Shack has...
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