A businessman enters a tavern, sits down at the bar, and orders a double martini on the rocks. After he finishes the drink, he peeks inside his shirt pocket, then he asks the bartender to prepare another double martini. After he finishes that one, he again peeks inside his shirt pocket and asks the bartender to bring another double martini.

The bartender says, Look, buddy, Ill bring ya martinis all night long. But ya gotta tell me why you look inside your shirt pocket before you order a refill.

The man replies, Im peeking at a photo of my wife. When she starts to look good, then I know its time to go home.