I was about 20 and I was on a survey crew. There was a whack of engineering types on a government DC-3 outta Moncton headed for Goose Bay to do airports systems evaluations in Labrador.

Levelled off and the pilot said there was serve-it-yourself coffee in the galley in the rear. About 30 seconds later the pilot said, "TWO AT A TIME! TWO AT A TIME!"