Recently there were problems caused by the security panic over aircraft bomb plots.

There was a long queue at a check-in desk.

A man pushed to the front of the queue and demanded service.

The check in girl said, politely, "Please sir, wait at the end of the queue behind these passengers."
Man, "I have a first class ticket."
Check in girl, "Please sir, as I said, wait at the end of the queue behind these passengers."
Man, "I demand to be dealt with as a first class passenger."
Check in girl, "Please sir, as I said, wait at the end of the queue behind these passengers."
Man, "Well marry you!"
Check in girl, "Please sir, as I said, wait at the end of the queue behind these passengers."