A married couple had a quarrel and ended up giving each other the silent treatment. A week into their mute argument, the man realized he needed his wife's help. In order to catch a flight to Chicago for a business meeting, he had to get up at 5 a.m.

Not wanting to be the first to break the silence, he wrote on a piece of paper, "Please wake me at 5 a.m."

The next morning the man woke up only to discover his wife was already out of bed, it was 9 a.m., and his flight had long since departed. He was about to find his wife and demand an answer for her failings when he noticed a piece of paper by the bed.

He read, "It's 5 a.m. Wake up."