Many are still unsure what to make of Vine, the video app that allows users to share six-second video clips on Twitter.

Denver Post columnist Al Lewis is on a crusade. A cranky Starbucks crusade! "How 'bout a slice of lemon to go with that $2.10 iced tea?" he asks, rhetorically. Because there is no lemon! Other places, they give you lemons. But fancy-schmancy Starbucks? No lemons. Don't blame Al Lewis. He's written (multiple) columns! He's sent his concerns all the way up the chain to the CEO! And now he knows why Starbucks' stock has lost half its value in a year: because they can't get Al Lewis a freakin' slice of lemon: