"Dad?" "Huh?" I said, looking up from my plate at my daughter Sarah. "What's wrong? You haven't said anything in a while." She was right. We were having dinner together, which was usually the time we caught up and talked about our days, how work and school were, and so on. But tonight, I was totally in my head. "Oh, nothing, sweetie. Just work stuff." This was sort of true. I was dreading going to work tomorrow as I knew...