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Listing two sizes of a dish (as is done at Churrasco Villa), without any indication of the difference, is torture for the indecisive customer, who inevitably asks the waiter to mime the approximate size of each dish with his hands. Either way, the restaurant wins: if a customer can recall ordering a small that was too small in the past, they will opt for the expensive upgrade; if a customer goes for the small, they are likely choosing the size—and price—that benefitted the restaurant all along.