Time to go Home

A guy was walking around the office Christmas party belting down drink
after drink. But every ten or fifteen minutes, he reached into his
shirt pocket, pulled something out, took a look at it, then put it
back in his pocket. Finally, a friend came up to him and said,
"George, I've been watching you all night, and I have to ask...what's
in your shirt pocket?" "It's a picture of my wife." "Why do you keep
looking at it?" "Because," George replied, "When she finally starts
looking good, it's time to go home."