Reader's Digest launches its November issue with a cover story on 50 Secrets Your Pilot Won't Tell You. Some of them will shock you. Here are 10 of our favorites: It's one thing if the pilot puts the seat belt sign on for the passengers. But if he tells the flight attendants to sit down, you'd better listen. That means there's some serious turbulence ahead." -- John Greaves, airline accident lawyer and former airline captain, Los Angeles (Getty Images)