We were at a large gathering where the hors-d'oeuvres buffet featured shrimp, cheese and crackers, and small fruit pieces. When dinner was served in another room, the hors-d'oeuvres platters were still partially full. I know it's the caterer's job to make sure they don't run out. Is perishable food like that left with the people who organized the parts, or taken away by the caterers? If the caterers take it away, do the employees get to take it home, is some of it re-used later, or is it thrown away?