I was taught as a child to take from the meal table only an amount of food that would be totally eaten. Nothing substantial was to be left on the plate. The waste was disrespectful to the vegetable or animal that gave its life to furnish my meal. This well explains my distress at seeing food that is barely be touched being piled high on plates during multiple runs to the fixed price restaurant buffet trolley. I have heard the excuse that however much food one takes or consumes, the price remains the same; another is that leftover food in the trolley is thrown out anyway at the end of the night. However I know some restaurants distribute uneaten food to homeless shelters or people who live on the streets. So taking or eating too much from seemingly limitless buffet supplies could deprive sustenance to the hungry and less fortunate. What approach should I take with my profligate dining companions?