Many years ago, at the height of the "troubles" in Northern Ireland, I was taking a ferry from Dublin to Holyhead in Wales. In those far off days there was still a "first class" and "second class" section on the boat. When I arrived at the dock to join the boat, there were hundreds of people herded together in a shed, having been evacuated due to a bomb scare. These were the second class passengers, believe it or not. The "first class" section had not been emptied - the staff didn't like to discommode them!

Regards