United Airlines security worker Marlene Andrade, 31, of Hawthorne, Calif., has sued "Jeopardy!" host Alex Trebek over an alleged skirmish that took place at Los Angeles International Airport last year. Andrade claims in her lawsuit that Trebek, 59, became agitated when she attempted to measure the size of a bag he wanted to take aboard his flight to insure it conformed to carry-on standards. Trebek allegedly readjusted a metal measuring bar and then slammed it down on Andrade's hand when she reached forward to stop him, according to papers filed this week in Los Angeles Superior Court. There has been no comment from Trebek, who has also refused Regis Philbin's invitation to sit in the hot seat during a planned celebrity version of "Who Wants to Be a Millionaire."