An artist, a lawyer, and a computer scientist are discussing the merits of a mistress.

An artist tells of the passion, the thrill which comes with the risk of being discovered.

A lawyer warns of the difficulties. It can lead to guilt, divorce, bankruptcy. Not worth it. Too many problems.

A computer scientist says; "It's the best thing that's ever happened to me. My wife thinks I'm with my mistress. My mistress thinks I'm home with my wife, and I can spend all night on the computer!"