But it also seems to reflect a worry about falling too deeply under his own spell.
"At the moment it's not a worry because we're not back until Friday, " he said.
That is a worry, because investors' appetite for these securities fuelled the boom in riskier mortgages.
Jacobs said batting with the virtual rookie Edwards in near darkness was a worry.
There is a worry that supposed diagnostic scans are now being used for entertainment.
The economy is a worry, but no one really knows what to do about it.
Not much of a worry for me but it's very good for the whole body.
However, big current-account deficits there and in other east European countries remain a worry.
ECONOMIST: Latvia has chosen economic torture over complete collapse
At the elite levels of sport, head injuries have been a worry for many decades.
But there is now a worry there isn't the financial backing that was there before.
That is a worry, but it depends on rather a conservative interpretation of the law.
By the same token, a sharp fall on Wall Street may be less of a worry.
Oddly, red tape is less of a worry than it is in other European countries.
It is also a worry for many Venezuelans, who would rather their country avoid big-power politics.
ECONOMIST: Venezuela and the Kremlin: The Russians are here | The
Nobody, not even Mr Chavez, disputes that Venezuela's dependence on oil is a worry.
"There is a danger that it could dry up altogether, it really is a worry, " he says.
And even if Russia were run by enlightened and honest reformers, the Caucasus would be a worry.
This will be less of a worry if a carrier can simply fly from another country's airport.
But if you are a worry wart then buy only essential service revenue and General Obligation municipal bonds.
Rising interest rates don't bode well for commercial lending, but the GE suit insists it isn't a worry.
It is a worry if a lot of their time is spent waiting for the phone to ring.
One thing looks increasingly certain: the relationship between Russia and Ukraine will be a worry for European security.
But that is arguably a worry in itself: turbocharged credit creation rarely, if ever, comes without a cost.
That is a worry because that was the standout strong section of the global economy in the first quarter.
Combined with a worry wall that just got higher, things look pretty good.
That might be a worry if China consumed most of what it imports.
Your dream is a worry that nothing will keep, but time is a story, and there will be more.
Another difference is that in the 1970s there was a worry that DNA experiments could in themselves present dangers.
It's a worry already being expressed by Sheffield Central MP, Clive Betts.
Declining GDP would not, in itself, be much of a worry, provided that output per person continued to rise.
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