《笑林广记·贪吝部》
海鱼刚到港口边就返回去了，河鱼追问原因，海鱼答： 我吃不惯你家这样的淡水。 
海鱼甫至港口便返，河鱼追问其故，答曰： 我吃不惯贵处这样淡水。 
The sea fish, having just arrived at the port, returns. The river fish asks why, and the sea fish answers: I cannot stand the weak liquor you serve.