I saw a group of people today with Royal Caribbean ID badges on asking how to get a taxi. I assume they needed to get back to Aloha Tower (where cruise ships dock in Honolulu) and had managed to get lost while around town. I wasn't in a position to help, but someone seemed to be helping them anyway, so that's good.
I wonder what happens if you work on a cruise ship and it leaves without you. Honolulu isn't a bad place to be stuck, but I have read that if you work on a ship, the company basically owns you. They provide everything you need, so I imagine without that connection you can end up somewhere and not have anything (e.g., money, ID other than your company badge, credit cards, etc).