LOL! Almost all of the AYCE (all you can eat) buffet restaurants in our are typically impose 2 rules: (a)max allowable time is typically 2hrs or less, with some of them set to 1.5hrs (from the moment you check in); (b ) no food to be wasted (will be billed if there's obvious left-behind on the table.
As my metabolism goes down, so is my appitite. I now typically consumes 1/3 ~ 1/5 of what I used to eat in the 20s....weight-gain is not too much of a concern but more like health related matters (still slim by NA standards).
Q.