Three Beers

An Irishman goes into a bar and orders three beers.

He takes a sip from one, then the second, then the third, repeating this until they're all gone. This continues every week for months. One Friday night, the man shuffles in looking quite glum. The bartender brings him his usual three beers, but the man hands one back. "Only two from now on, I'm afraid," he says. The bartender, concerned, asks, "Gosh, did something happen to one of your brothers?" "No, they're fine," the man replies. "It's me. My doctor told me I had to quit drinking."