Linda and I went to a concert tonight. We stood in the crowd, listening to the band, surrounded by people mostly younger than we are. It's inevitable at these club shows that there will be one couple that spends the concert making out as if they're trying to break some sort of record. In the past, I'd ignore them, although I'd secretly feel envious of their youthful enthusiasm. Now, I look at them and think, "My God, that's someone's daughter."