"I've suffered this pain for quite a while but it's a bit of a strange problem because scans and X-rays don't show anything, " said Ferrero.

BBC: SPORT | Tennis | Nadal cruises into second round

Although it is worth remembering too that none of the mainstream parties in Dublin would be likely to enter coalition talks with Sinn Fein until the IRA decommissions its weapons - a strange reflection of the problem the party faces North of the Irish border.

BBC: Sinn Fein in the spotlight

They wouldn't have available to them the best possible defense lawyers, but in a strange sense, this is not a problem unique to South Africa.

CNN: STORY HIGHLIGHTS

The lesson, to Mandelbrot, is obvious: Go with the math that matches the problem, even if it seems strange.

FORBES: Mandelbrot: A Math Maverick Takes Stock

What is strange is that the bank, having identified the problem so early, took so long to do anything about it.

ECONOMIST: British banks

There have been all sorts of explanations of what caused yesterday's crash - from a problem at the main exchange to a strange incident in which someone called Bitcoinbillionaire apparently started giving away large sums on the social news site Reddit.

BBC: The Bitcoin bubble

The problem with all this media hijacking goes beyond the strange twists and turns along the way.

CNN: Hijacking the media -- Trump shows how easy it is

The strange thing is the car may seem to run normally despite the problem.

WSJ: Why Do Coupes Cost More Than Sedans?

The biggest problem with structured notes is that that your returns may be calculated in very strange ways.

FORBES: The One Investment You Don't Need

As Reich points out in his video, the decline in the American middle class has led to a strange phenomenon, whereby the victims of the policy identify politically with the folks who caused the problem.

FORBES: Forget President Obama: Why Isn't Robert Reich President?