One fascinating example of an idea sanctuary in action is ListenToUs, a 5, 000-member community on Reddit, the fast-growing news, discussion and trivia site.

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The unions have said the idea of of taking action in this way was to avoid disruption to pupils and have called on the education secretary to resolve the ongoing dispute.

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As a student of movements, this one is very well conceived and executed, powerful in its message, and extremely effective at rallying people to believe in an idea and take action to support that idea.

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The Department for Communities and Local Government said it would consider the idea, but stressed the action already being taken to support independent traders in England.

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In fact, I think starting any sentence with "just between us" is almost guaranteed to ensure that what you are about to say will not stay confidential, in the same way that it is usually a bad idea to precede any complex physical action with "Watch this!"

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The majority relied on the idea that the plaintiff still had an interest in the case because if it continued as a class action the plaintiff could spread the legal costs across a larger group.

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It is generally a bad idea to try shooting anywhere in the precincts of the Grand Mosque without "permissions" -- an action likely to get you arrested, if not attacked by the over-zealous amongst the pilgrims who regard the taking of images as "haraam" or religiously forbidden.

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However, CBI director general John Cridland is frustrated by the lack of action on initiatives such has this, as well as the idea of getting pension funds to invest in infrastructure, and wants to see more progress.

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