If disabled athletes want parity, the view went, then that means accepting that accidents will happen.

BBC: Curtain comes down on Paralympics

Not much oil was spilled, but the message was clear: so long as there are ships, and humans steer them, accidents will happen, and may be huge ones.

ECONOMIST: The Exxon Valdez

Even without any ill intent, accidents will happen at sea.

ECONOMIST: Asia's navies

Chief executives throughout the oil and gas industry are now asking their operational leadership for assurance that similar accidents will never happen in their organizations.

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If they are not trained, things may go wrong, accidents might happen and everything will take longer.

BBC: NEWS | Programmes | Working Lunch | Lunch Lesson 12 - Apprenticeships

Just like accidents, leaks are bound to happen and attempts to stop the traffic will fail, says Mr Schneier, the security expert.

ECONOMIST: Companies and information

We often watch as other people face health scares, family care challenges, or sudden accidents and think to ourselves, how terrible for them, but it will never happen to me.

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