Originally Posted by
sunshine-state
... one of UA's senior pilots was riding a few rows behind us (he was flying IAD-KWI-BAH later that day). As we stood on the tarmac waiting for our gate-checked luggage, she asked him about the planes. He just smiled and said, "If I told you that, I'd have to kill you..."

Most people that use that line have no idea what they are talking about...