Then there was the time they were flying through turbulence.

Then there was the time they were flying through turbulence.
Some of the passengers became alarmed at how much the wings
were bending in the rough air and one of the flight attendants
relayed that message to the captain. His announcement:

Ladies and gentlemen, I've been informed that some
of you have noticed our wings bending in the turbulence.
In fact, the flight attendant told me that the wing
tips are bending as much as ten feet in the bumps.
Well, that's perfectly normal; there's nothing to
worry about. Our wings are designed to bend as much
as thirteen feet at the tips and, as you can see,
we're nowhere near that yet.