Funny to hear that.
I was working as a bosun on a cargo ship and on a trip to Europe the shipping line owners daughter and three of her friends (two girls and their boyfriends) sailed with us. They were travelling to Rotterdam.
Sure as heck first day out around ten in the morning i see these two miserable figures walking up the deck in brand new coveralls, it was the two boyfriends looking for me, (where someone had those found those coveralls for them God only knows, we certainly didn't wear them), they told me the Captain said i should find work for them.
That particular Captain was old school, he was a good guy, and Hoofbite is right there is an unwritten rule that everyone on board does work for their passage.
The owners daughter and her friends were no exception, the girls didn't work but the guys had to. I took pity on them and just had them paint handrails for a few days but in retrospect that might not have been a good thing with the paint smell and that sweet sweet roll that every large ship does at sea, there are no stabilizers on cargo ships unlike their cruise line counterparts, those boys were green around the gills for the whole trip.