A Vermont man on a flight home from Chicago was stung twice on the leg by a scorpion. David Sullivan, a 46-year-old builder, was snoozing aboard the United Airlines flight when he felt a nasty nip on his leg. Another passenger stepped on the five-centimetre-long arachnid. He scooped up the scorpion and headed to hospital. His wife stopped at the United counter and was told the plane they were...