A trend that kicked off last summer with protestors supergluing themselves to Starbucks venues has taken its next step. But that next step has landed protestors inside blocks of concrete, with placard-waving protestors closing off the entrance to a Nashville Starbucks by embedding themselves. In a campaign meant to show how vegan protestors are refusing to budge, the protestors waved signs asking Starbucks to 'end the vegan upcharge' on plant-based milks. Starbucks said: 'We respect our customers’ rights to respectfully voice their opinions so long as it does not disrupt our store operations.' The company said customers can add a...