One of my friends in highschool was mortally embarassed when her father not only fell asleep during a televised performance of the choir she was in but while asleep fell out of his chair into the aisle. He needed nudging.

My father was a professor and became quite distressed in the last few years before he retired at how many of the students chatted during lectures. This seemd really silly to me, if I didn't like the lectures I skipped them.

Then again I went to see A Winter's Tale performed at Stratford and in the audience were 8 year-olds and retirees. The 8 year-olds were quieter. They also asked great questions at the end, "When you're up there can you understand what you're saying?"