"A businessman arriving in Boston for a convention found that his first evening was free, and he decided to go find a good seafood restaurant that served scrod, a Massachusetts specialty. Getting into a taxi, he asked the cab driver, "Do you know where I can get scrod around here?" "Sure," said the cabdriver. "I know a few places... but I can tell you it's not often I hear someone use the third-person pluperfect indicative anymore!"
(found while trying to dig up a recipe for roast cod)