November 1999: Train between Cairo and Alexandria hits truck and derails, killing 10 and injuring seven.

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May 1995: Nine die after train hits a barrier just north of Cairo and derails.

BBC: Egypt's history of train disasters

That way, if the star derails, the wider campaign can continue.

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The big tour operators will be hoping that economic uncertainty derails the trend of recent years for people to organise their own holidays instead of packages.

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Failure to strike the right balance often derails newcomers.

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This sometimes becomes a nuisance to doctors, as one thing the patient input derails the thought process of the doctor, also sometimes it allows the patient to doubt about the doctors diagnosis.

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In practice, though, the government customer often derails those plans by continually tweaking requirements after contracts are signed, forcing contractors to go back and redo tasks already thought to have been completed.

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