I think it's silly to worry about the overwing exits. What are the chances you will actually need to use it? Worry about something more likely, or just quit worrying, period. You will live longer!

I don't like sitting in the exit row because it's very cold. Grandma can sit there for all I care. I think the FAA gives people in an emergency less credit than due. If you do need to the use the emergency exit and Grandma can't lift the heavy door, I'm sure someone will volunteer real fast.

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"Be careful about reading health books. You may die of a misprint." -- Mark Twain