I love that "did I miss anything?" approach. When I was teaching high school (near Chicago), students would say such things as, "Oh, I was suspended last week. Did I miss anything in your class?" or "I'm going to be gone all next week. Are you going to do anything important in class that I will miss?" I always told them, "Every syllable that I utter and every recitation from one of your classmates, every half-sheet of paper that I pass out, and every chalk mark on the blackboard is a gem. You absolutely need to get every crumb of information." Yes, we missed you. Pat