Programmer comes home late with lipstick on his collar and face, smelling of perfume.

Wife is glaring at him.

"Honey, I have to tell you the truth" he says. "You remember Judy from accounting? We ended up talking, getting close, one thing led to another, and I ended up sleeping with her. I'm so sorry".

Wife glares at him some more.

"I don't believe you for a second, you lying son of a bitch. You stayed late programming again, didn't you?"