A guy was walking around the office Christmas party belting down drink after drink. Each time he took a shot he reached into his shirt pocket, pulled something out, took a look, then stuck it back in his pocket. Finally, a friend walks up to him and asks: "Hey man. I've been watching you all night. What do you keep checking in your pocket?"
"That's a picture of my wife."
"So why do you keep looking at it?"
"Because," he replied: "When she finally starts looking good, then it's time to go home."