But wouldn't any couple squabble? Explorer Deborah Shapiro, who spent more than a year with her husband in the Antarctic, provides some marital survival tips here.
Some examples of people cooped up for long periods: The Big Brother house, nuns and monks, lighthouse keepers and oil rig workers, military units, ice road truckers, people on around-the-world yacht races, submariners and prisoners.
Maybe we should make light of the confinement with a Jailhouse Rock.
Do you think you could discipline yourself more in normal life?