"All the banks and building societies thought they were going to get their money back when they lent gargantuan sums in the run-up to 2007 - they were clearly wrong then and they are wrong again, " he added.

BBC: Nationwide offers 125% mortgage

But the clients lost hundreds of millions of dollars, the suits claim, when the two funds bet wrong as tech stocks rocketed up in 1999, then bet wrong again when the market fell.

FORBES: Hedge Hell

And then again I may be wrong.

FORBES: Why the Fed Should Stay Rogue

Then again, one would be wrong.

FORBES: The Sierra Club Fails An Environmental Consistency Test

But then again, you would probably be wrong.

CNN: Review: 'Cabin in the Woods' is sheer horror heaven

Then again, for a startup like En.able, interest can sometimes be of the wrong sort.

ECONOMIST: Electricity marketing: Not as billed | The