An elderly Chinese woman had two large pots, each hung on the ends of a pole which she carried across her neck.
One of the pots had a crack in it while the other pot was perfect and always delivered a full portion of water. At the end of the long walk from the stream to the house, the cracked pot arrived only half full.
For a full two years this went on daily, with the woman bringing home only one and a half pots of water.