This leftover thing remind me that in places where this ‘all you can eat’ type deals are given, people eat food in a strange way. Like in Pizza, they eat center part and leave corners (which is simple bred without stuffing). Some people also complains that Pizza Hut’s quality has declined specially when they offer such deals. Sometimes, people fill their plates top to bottom, which they can’t consume just to recover the price they pay. Result is wastage of food.