When Vivian de Walque, a 37-year-old Reddit user, reached for a five-pack of Reese's peanut butter cups to ease her workday stress, she wasn't prepared for what would become a viral candy catastrophe. "I figured it was a one-off, so I bite into the next one. Nope, no peanut butter. Well, there's no way I could get three in a row... right?" humorously recounting her quest through all five cups, each solid chocolate, "without a trace of peanut butter," she told Newsweek. Sharing her experience on Reddit's "mildly interesting" sub, Vivian's story struck a chord with 100,000 upvotes. De Walque,...