After many years in the military and at sea you begin to see what is relevant to accomplishing your job or mission and what is irrelevant. Close confinement with different types of people mandate that you realize other's points of view. How do they reference the world, how do they see you? Friction or disagreement with others in your crew is not a reason to lose sight of the job. An unpleasant person can be treated like any other obstacle to be overcome. Bad weather, deal with it. A broken water purifier, deal with it. Faulty air conditioner, deal with it. Loud, complaining shipmate, deal with it. Your job on board still needs to be done. At some point though, competent management and good leadership are essential for crew function. An unpleasant shipmate that threatens the well-being of the vessel needs to be privately disiplined, have their behavior recorded and informed that the next action will be their dismissal. Prior to that, though, there is usually a period where the crew endures the unpleasant person. This takes patience and focus on your job that comes from maturity and experience. I've noticed that many job offers in this industry require an immediate response to join the ship. I wonder what happened that a sudden requirement to replace a crew member is presented. Did a person desert? Were they dismissed? Get sick? How many individuals in this industry are mature enough to be committed to their jobs? I would hope that crew agencies and owners don't overlook mature individuals who want to serve in this industry. Their experience can't be measured in dollars or euros and may be irreplaceble.