As any grizzled old bosun will tell you, profanity is good for you, and the University of East Anglia concurs. A recent study by Professor Yehuda Baruch reckons that a few well-seasoned expletives improve team spirit.
The BBC quotes Baruch: “our study suggested that, in many cases, taboo language serves the needs of people for developing and maintaining solidarity, and as a mechanism to cope with stress. “
As we know, team solidarity is good for safety, and so is stress coping. So when you tell the Chief Mate to f-off, you’re simply enhancing shipboard safety.