If your nerves are jangled by deadlines, an overflowing e-mail inbox and a constantly ringing phone, it may be time to disconnect.

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Talk of Northern Rock's exceptionalism is intended to soothe jangled nerves, since it suggests that other banks have pursued a less risky path.

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After hours of jangled nerves, officials signaled it was safe to move throughout the area and people settled back to normal, if watchful, activity.

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Nevertheless, nerves have been jangled by some glaring security lapses: for instance, plans to check the backgrounds of contractors and volunteers were reportedly dropped because organisers ran out of time.

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An electrical storm jangled power to the center.

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But nerves remain jangled.

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