This is going to ruffle some feathers though, content providers are having a hard enough time smiling through their teeth at DVR-wielding cable companies.

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Most of us spend our days the same way people spent their days in the year 1000: walking around smiling, trying to earn enough to eat, while neurotically doing these little self-proofs in our head about how much better we are than these other slobs, while simultaneously, in another part of our brain, secretly feeling woefully inadequate to these smarter, more beautiful people.

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"The one thing most of these young criminals are clever enough to realise is that they should not go smiling at the camera, " said Mr McIntosh.

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And sure enough, the girls, meeting Americans for the first time, quickly stop smiling when I ask if they're enjoying the encounter.

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