HDDR is not a buffet though. I have not seen anyone taking food in the maybe 3 times I have gone since 2000 (but I don't pay much attention to what the people around me are doing). Any food on the table at HDDR would be thrown out, so I don't really care if someone takes it or not.
Years ago when I had a pre-park opening breakfast at Be Our Guest, where they automatically brought you a whole platter of pastries with breakfast, I absolutely took the pastries I didn't eat with me. I paid for them, so why not?