Mary Avis had been a white-knuckle flyer for years. But on one fateful
flight from Virginia to Boston several years ago, her fear finally took
complete control. Although the weather was clear and the flight was smooth,
"I was sure that if I stood up, the floor would collapse and I'd fall
through," says Avis, now 61, who spent the entire flight motionless and
When the plane landed in Philadelphia to refuel, Avis fled. "My husband
was annoyed, to put it mildly," she...