Your dumbest moment at work?

Everybody makes mistakes at the office, and sometimes they’re bad enough – or just embarrassing enough – that slinking away to a different company where nobody knows you can seem like the only real option, writes Fortune‘s Anne Fisher in her January 23 Ask Annie column. But there are ways to overcome even a giant career goof. What was your dumbest moment at work? Were you able to recover? How? And what blunders have you seen co-workers or bosses make?