Case in point was the Williamsburg record store I walked past several times last Friday night that had a "Back In 5 Minutes" sign posted for at least 20 minutes.

Is it better to be specific? I started to consider the implications of “back in 5 minutes” signs after walking past a shop that instead had “Back at 1.30” posted on their window.

Please Never Use A 'Back In 5 Minutes' Sign Again. Gus Lubin. . Careers ...