Etc You get the idea. A few definitions and FAQ . On boats 70ft. and larger, a 3rd crew is sometimes added as a deckhand. Check the specification sheet of the yacht that interests you. Therefore, if a disagreement arises about any issue, he will have the last word.
Guests take an active role here.
You can also tell the Chef about any special events, such as birthdays or anniversaries. It's also important that you make the Chef aware of special dietary requirements such as low-fat menus, food allergies, etc. I can modestly say I am a decent sailor myself. I even hold a commercial, USCG sanctioned, Captain License. Quite frankly, if I am going sailing for a week with a couple of seasoned sailing buddies, the very last thing I need is a crew in my hair.