[Grunthor]

I don’t always drink beer, but when I do, I drink only one.

http://www.macandjacks.com/index.php

And one goes a long way.

[BipolarBob]

"I don’t always drink beer, but when I do, I drink only one."

It takes only one beer to make me drunk, but for the life of me I can't remember if it's the ONE after 12 beers or thirteen.