Some Boeing Passengers had, Wisely, Taken Precautions Before Boarding Their Flight.

Winner: Lockjaw

Runners-Up:

"Hello, we're from the Jehovah's Witnesses, would you like one of our leaflets?" (AdrianBamforth);

"I know we can't get a doctors appointment for love nor money but are you sure this is how drop in centres work?" (Des Cann)