Cynictologist

Hi, Chef. Is there a written rule separating what's fed to the crew as opposed to the guests in terms of price and quality of ingredients? If not, is there an unspoken understanding as to what the crew can and cannot consume from the ship's stores?

Warren Buffett, for example, loves Cherry Coke and burgers. What common, grocery store item(s) do you usually have to buy or prepare for an employer and their guests? Thanks for doing this AMA, btw.