The Compartments 1

Ships, particularly warships, have watertight compartments to stop internal flooding from torpedoes, bombs, or other hull damage to the ship. Sailors slam the heavy steel doors (hatches) shut and seal them tight, also known as dogging the hatches. This keeps the ship afloat during times of crisis.

Military people, particularly those who have seen combat, also have compartments. When you’re flying off of your leader’s wing (who is also your best friend) and he gets blown out of the sky and you can’t do a damn thing about it, you have to lock all that in a compartment or you will be dead, too. When it comes time to bring your fighter back on board a carrier, the only thing that is on your mind better be landing the plane. Everything else needs to be locked away in its compartment. One moment of worrying about something else will land you on the blunt end of the boat instead of the carrier deck.

You can’t let shit leak out of your compartments into the others, or your ship might founder