My experience from months at sea is much the same, people get locked into daily routines and don't like continuous clowning that interrupts those routines. Organised events with humor and laughter that break the routine are better.What if in the middle of the voyage one or more crew members do realize they are fed up of him?
My experience from long voyages at sea says that too strong personalities of any kind could get the angry focus of disappointed people, rather easily.
It's easy to have people, unable to deal with their own, tending to mess with others' life as a way to escape.
Every group immersed in some kind of routine, always has: a lawyer, a lazy and a funny guy. And very frequently, one who knows everything.
I would just tell them, don't make airlock jokes.
but sometimes it's needed when a crew member gets to be a pain.