Mario Batali: learning the importance of a job done completely

From an interview of chef Mario Batali in Adam Bryant's Corner Office column:

My dad was a heat treatment engineer for Boeing, and there was a process and a directive that you needed to repeat every day. His job was to go in and find out if there were any flaws in surface metal. His understanding of the necessity of that kind of careful process was a big part of us growing up.

I'll never forget the time I was over at a friend's house and he'd call and say, "Mario, come home." I said, "Why, Dad? Is everything all right?" "Yeah, come home," he said. So I would come home, and in the drain there were still chunks of stuff. It had been my turn to do the dishes, and the dishes were done. The kitchen was clean, but the job had yet to be completely finished. And I said, "That's ridiculous." But understanding the importance of a job being completely done stuck in my mind.