A woman who gave a Loudoun County, Virginia restaurant an average rating online after ordering food says she got a scare after the manager showed up at her home unannounced later that night. Yesha Callahan, an editor for online magazine The Root, says she ordered food from La Porchetta, a pizza restaurant Callahan said the delivery driver was friendly and asked her for a Yelp review. After her meal, Callahan logged on and gave her assessment of a burger and an Italian-style pastry. "Tried this place based on the reviews and the fact that they had zeppoles on the menu,...