The Art of Flat
Submarines are notably compact, which contributes to the constricted passageways between compartments. Keep in mind that these areas were designed primarily for navigation by thinner individuals.
To pass in a straight line, all mariners must become “flatter” than possible whenever they need to go across at the same time. This gets worse when someone has to hurry through. Typically, the rushing party would just call out “make way, coming through” to ensure that everyone makes an effort to get out of the way.