In this article, the author gives a detailed account of their experience onboard a nuclear submarine. They highlight the practical advice given by the executive officer, such as not being in the toilet when the submarine dives deep. The author also mentions the camaraderie and informality among the crew, as well as the unique experiences and challenges of life on a submarine. They touch on the different roles and responsibilities within the crew and the importance of loyalty and teamwork. Despite the confined spaces and potential dangers, the author finds that life on the submarine can be routine and even enjoyable for many crew members.
https://www.theguardian.com/uk/2012/aug/21/life-on-board-nuclear-submarine