Arriving home from work at my usual hour of 5 p.m., I discovered that it had not been one of my wife's better days. Nothing I said or did seemed to be right.

By 7 p.m. things had not changed, so I suggested I go outside, pretend I had just got home, and start all over again. My wife agreed.

I went outside, came back in and, with a big smile, announced, "Honey, I'm home!"

"And just where have you been?" she replied sharply "It's after seven o'clock!"