The bottom line is...where ever there is a buffet, people will over eat. Maybe not overeat-just take way too much. Doesn't matter if it's a cruise ship. hotel, restaurant. AI, family picnic. Some people just have no control-it's a hoarding thing. I was once in a buffet behind an obese man who had 2 plates piled high with food. I casually asked if he was planning on hibernating-the guy gave me a really puzzled look. He had NO idea what I was talking about. I've just learned to ignore the terrible waste. It's hard but I won't let it ruin my cruise.