or they simply report sick
There are too many that "simply" report sick. Like that is going to help anyone. Whatever the reason is (evil captain, nasty destination, ...), it will not hit CC or the company or anyone in management. It is a fellow colleague that will have to take over the trip, most likely having his floating days moved or being taken off a nicer trip. I cannot understand people that on one hand want roster stability, but on the other hand destroy that roster stability for their colleagues, by "simply" calling in sick.