The woman says that every day her husband looses his temper and it frightens her.
The Dr advises, I have a cure for that, every time he starts to get angry i want you to take a mouthfull of water from a glass and swish it around and around in your mouth, dont swallow just keep swishing until he calms down.
Two weeks later the woman returns looking fresh and reborn, she reports, that was a brilliant idea. She says ,as soon as he started loosing it i started swishing and he calmed right down every time, Dr how does a glass of water do that?.
The Dr replied, The water itself does nothing, Its keeping your mouth shut that does the trick.
