If your flight has an aborted takeoff, an emergency, or a rough landing and the captain orders an immediate evacuation, do you know what to do?

Surprisingly, recent research by the International Air Transport Association reveals that four out of 10 passengers have no idea what they should — and shouldn’t — do.

Rule number one: Find the nearest exit and leave every piece of personal property behind.

Every second lost to passengers trying to leave an aircraft with their carry-on bags could cost lives.

Since so many people have left planes with their suitcases, backpacks, and purses, airlines are now considering a system that would instantly lock overhead bins during an emergency.