A pauper asked Rava for fattened chicken and aged wine, because that was his diet before he became impoverished. Rava expressed concern for the communal burden; the pauper replied that the food of the needy comes from Hashem, not truly from people. Then Rava's sister - whom he had not seen for 13 years - visited, and brought fattened chicken and aged wine. Rava apologized and invited the pauper to eat: Ketuvot 67b