If you thought the United Airlines public relations nightmare was over, you thought wrong. Passengers Richard and Linda Bell were on their way home from a two-week vacation to Mexico, and while on their final connecting flight from Houston to Calgary, a scorpion fell on Richard's head. After flinging the creature off his head and onto his tray table, he tried to pick up the creature and it stung him. Another passenger stomped the scorpion to death and flushed it down the toilet. Teamwork!