By the way, on my last ship, the dining room waiters had a great way to earn extra money and have fun doing it.
They would identify the tables that frequently order multiple main courses. Then all the waiters would form a pool, betting money on the highest number of main courses per person ordered on one of these special tables.
The numbers were quite surprising. The winning table usually was in the 6 or 7 main courses per person range.
It was all great fun. The staff really enjoyed it.