A woman was at the doctor, battered and bruised. She explained that every time her husband came home drunk, he beat her.
"Well, I have something you can try," said the doctor. "Every time your husband comes home drunk, when his car pulls in the driveway, I want you to take a sip of sweet tea, and swish it around in your mouth until he falls asleep."
The woman was desperate to try anything, so she said she'd give it a shot.
A month or so later, the woman reappeared at the doctor's office, refreshed and looking new.
"Doctor, I tried what you said, and it worked! How does sweet tea do this?"
"Well," said the doctor, "see how much better it is when you just keep your mouth shut?"