In Czech we have a phrase 'submarine disease' which does not seem to have equivalent in English. It is used for the state when several people has to live together in small space and due to lack of privacy they tend to dislike and hate each other. The way someone sneeze, the way someone throws his towel on the floor .. and you find yourself wanting to kill the other guy.
Some say this will be serious trouble for interplanetary flights. Now back to topic.
It's perfectly clear now after Frame57's stories where this term come from, right !? :rotfl:
PS: funny enough, we don't have sea or navy, much less submarine force