I'm looking for suggestions on a position for a crewmember on a sailing ship, who in fact, does not have any interest in sailing, ships, or the sea. And he does not have any skills useful for operating such a ship. No navigation, no piloting, no artillery magical or otherwise, no sleeping with other crewmembers, nada. The only thing this person would help with is fighting off boarding parties or sea monsters.
The reason I ask is because if the rest of the party decides to become sailors, I will go along with it instead of sitting on my butt doing nothing.
Don't knock being there to kill stuff. RL sailing ships thought it was important enough to carry marines and such, and they didn't have oceans full of kracken, aboliths, skum, and all the other "aquatic encounters" found in the bestiary.
People might gripe that you aren't pulling your weight, but the first time some -thing- from the deep pulls itself over the rail, and you put an axe in its misshapen skull, they'll change their tune.