After nearly 400 Mommy Greenest readers signed a petition urging Hershey to speed up its goals of certifying cocoa production and eliminating child slavery, the company responded quickly. I called Hershey yesterday, expecting to confirm receipt of the petition, which I had mailed less than two weeks ago. But within a few hours of leaving a message for CEO John Bilbrey, I received a lengthy email from their consumer relations department, which shared some things I didn’t know about the chocolate behemoth. Let me tell you, I was surprised.