A woman goes to the doctor, beaten black and blue.
Doctor: "What happened?"
Woman: "Doctor, I don't know what to do. Every time my husband
comes home drunk he beats me to a pulp."
Doctor: "I have a real good medicine for that. When your husband
comes home drunk, just take a glass of Listerine and start gargling with
it. Just gargle and gargle."
Two weeks later the woman comes back to the doctor looking fresh and
Woman: "Doctor, that was a brilliant idea! Every time my husband
came home drunk, I gargled with Listerine. I gargled and gargled, and
Doctor: "You see how keeping your mouth shut helps?"