Even Labour strategists, surely, recognise the perils of "warning" about the prospect of Cameron as some secret tax-cutter.
"Literature, it seems to me, our national literature, has never been in such peril," she writes, warning that "our great books were never written according to a rule book", and that "we need to be alert now to the tap-tap-tap of the bureaucrats' computer keys telling us what to write and how".
The cost of fine Swiss-made goods, from watches to precision machinery, has gone from eye-popping to eye-watering, and Swiss companies are warning of peril.
Separatists are also riding the counter current with shockingly racist advertisements warning of Muslim peril.
Painters evidently enjoyed showing people having a good time, but they justified this by suggesting they were warning of the perils of decadence.
On one side you had grizzled, acid house veterans sternly warning against the perils of dressing up and having fun in nightclubs.
In the case of the intelligence community, it was somewhat more haphazard, although if you go back to 1946, Bill Donovan, the former head of the O.S.S., was warning against the perils of excessive Balkanization even then.
It picks up where "Batman Begins" left off, with Mr. Oldman's police lieutenant, Jim Gordon, warning about the perils of escalation: that Batman's extreme measures could invite a like response from the criminal element.
But Mr. Greenspan pressed the committee to go along with him, warning about the perils of a split within the Fed and saying too big a move would destabilize the financial markets.
On Thursday, senior lawmakers pressed a top C.I.A. official on Capitol Hill about whether Mr. Obama had been given enough warning about the perils of the growing demonstrations in Cairo, and whether spy agencies had monitored social networking sites to gauge the extent of the uprising.
