<p>Tricky maneuvers, curious passengers, and other kinds of turbulence<br><br>The star DJ who spontaneously invites the entire flight crew to his concert in Rome, the businessman who has his forgotten cigars flown in by private jet, and the oil millionaire who has the stewardesses crawl through the cabin on all fours to the sound of Pavarotti arias?there's nothing that Pilot Patrick has not experienced in his job. Germany's most famous airline ca...