Father told son buy wine, the son asked his father: "the bottle, isn't there?" Father shook his head say: "is too little." A few minutes later, the son carrying the bottle back. Dad took the bottle a look, at the moment, the original bottle containing most of the bottles stones. Son proudly said: "daddy, you drink, the crow is such water." Dad in distress situation, way: "my son that learning is not white on it."