According to Middle Sister, at least.
TheDad has been working hard all day on a programming project. Middle Sister doesn't understand why, since he's sitting at the dining room table, she can't just come in and chat with him about anything that's on her mind. This is partly because when TheDad is programming, a bomb could go off in the next room and he'd never notice. Low distractability is a good quality in a programmer, but it frustrates the kids.
So as she wanders through the room, she complains to TheDad that he has been working since 8:30 this morning, and asks when he'll be done. He wants to finish, and explains that to her. It might take several more hours. "This is my life," he concludes.
"Then you have a boring life," she responded.