DH and I were flying from DC to Phoenix with our 20 month old twins (last trip before we have to pay for seats for them). It's important to know that each section of a plane has one extra air mask for a lap child, so we cannot sit together (so, in this case, where it was a plane with 3 seats on each side of the aisle, we could sit across the aisle from each other, but not in the same set of 3 seats). In order to get aisle seats across from each other, we were in the very back row. When we boarded, there was a man in DH's seat. He had originally been assigned the middle seat next to me, but he was flying with his daughter (she was probably 9 or 10), and refused to move. The flight attendant ended up asking the lady in the aisle seat a row ahead to move to that middle seat next to me, since, as I said, DH and I could NOT sit next to each other. The lady was very gracious about it, but her husband was ticked off they would be sitting apart from each other. If the first man's daughter had been younger, I could have understood a bit better, but she seemed old enough that sitting apart shouldn't have been an issue-especially since he's whole attitude just screamed that he didn't care about the inconvience to others he was causing.