Cruise ships are famous for their "free" food, which is prepared in such quantities that excess must be a pretty regular occurrence. Meanwhile, many of the ports of call in the Carribbean are at or near poverty-stricken areas. I'd like to think that excess prepared food is regularly off-loaded for local charities at the appropriate ports, but have not found evidence of this (I'm aware, though, that absence of evidence is not evidence of absence).