Murray gave the merest hint of the jitters as he fell 0-30 behind when trying to close out the match but extinguished the danger with some heavy serving and converted his second match point to win in just 54 minutes.

BBC: Andy Murray beats Jo-Wilfried Tsonga in Shanghai

And most of us actually like the people we write about, but there's a danger in getting so close to our sources that we shy away from pushing them on the facts for fear we'll lose a story.

CNN: Te'o story, big fail for sportswriters

Although it is hard to say exactly where the real danger zone lies, it is clear that share prices are slipping close to it.

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If a predator tries to get close, the water acts like an alarm system and alerts them of any danger.

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Moments later Alberto Gilardino went close for Italy flicking a near post cross towards goal with Cesar again reacting well to avert the danger.

BBC: Italy 0-3 Brazil

Fabio Collocini had to snuff out danger from that pair on 10 minutes, just before Newcastle midfielder Geremi went close with a 25-yard free-kick awarded after Tal Ben Haim hacked down Obafemi Martins.

BBC: Newcastle 2-2 Man City