A woman had a magic well.
She would put her pail on the edge of the well and clap her hands and the well would dispense a measured amount of water into the pail. The only problem was that the well would never give out the same amount of water.
This distressed the woman and she decided that she would consult the neighborhood priest.
She showed the priest the problem and the priest decided the well was infected with some sort of malicious spirit. The priest then proceeded to pray and bless the well with holy water.
He then instructed the woman to place the pail on the edge of the well and to clap her hands.
This time the well filled the pail 1/4 full.
The priest then instructed the woman to place the pail a little to the left of the previous spot and to clap her hands.
This time the pail was filled 1/2 full.
The priest then told the woman to move the pail just a bit further to the left and to clap her hands.
This time the pail was filled to the brim and made the woman very happy.
Each day the woman enjoyed the pleasure of getting a full pail of water, as long as she placed the pail in the same exact spot.
She thanked the priest every time she saw him.
One day the priest decided to take the bishop to the woman's home to demonstrate the procedure.
After seeing the woman go through the steps and the subsequent filling of the pail, the bishop remarked, "I see you have trained her well."