[QUOTE=Kythereia]
Mandarin, the local Chinese buffet near my house, serves food of the* gods* (even if they do offer hamburgers and fries in the next breath). If anyone wasted food there…
[/QUOTE]
Mandarin. Yum.
And the good thing about buffet is, you can make sure you get the size that’s appropriate for you. When I go to the Indian buffet at Coxwell and Gerrard, I might get two helpings, and even that’s exceptional. It’s limited more by time needed to eat than quantity taken.
Still charging for taken but unused food kinda makes sense, even if it does only go into the city composting system. Taken, unused food cannot be sold to the next customer. What A. R. Cane describes is the opposite, correct? If you actually eat it*, there should be no problem**.
Guinastasia, I like your line, “It’s all you can eat, lady, not all you can take”. Sometimes just the right phrasing makes something snap into clarity. 
panache45, did your cousin go often to the same restaurants and eat a lot each time?
I’m wondering, how well do restaurants know the average size of meals taken at buffets, and the likelihood of large takers? If the buffet was priced assuming the average patron took two servings, and the restauranteur know that customers were talink on average 1.75 servings, the cost of a five-serving taker showing up once every six months could be absorbed for goodwill. But if that five-serving taker showed up every day, it might be a problem.
I still can’t see one five-serving or even ten-serving taker pushing an establishment over the edge, unless there weren’t that many other customers, or profit margin was really low. The restaurant has to absorb the cost of all the food that does not get taken each day as well.
[sub]* And I don’t mean in the fashion of the ancient Roman vomitorium. Barfing so you can taste more doesn’t count. It has to stay down and be used.
**Of course, any establishment retains the right to refuse service to anyone, correct? How far does that right go?[/sub]