A woman goes to the doctor with little bruises on her face.

The doctor asks: "What happened?"

The woman says: "Doctor, I don't know what to do. Every time
my husband comes home drunk, he slaps me around."

The doctor says: "I have a real good cure for that. When
your husband comes home drunk, just take a glass of water
and start swishing it in your mouth. Just swish and swish
but don't swallow it until he goes to bed and is asleep."

Two weeks later the woman comes back to the doctor looking
fresh and reborn.

The woman says: "Doctor that was a brilliant idea! Every
time my husband came home drunk, I swished with water. I
swished and swished, and he didn't touch me!

How does the water do that?"

The doctor says: "The water does nothing. It's keeping
your mouth shut that does the trick........"

http://www.youtube.com/watch?v=MqcxBa2K7Mw&feature=related            
You say it BEST when you say NOTHING at all