O'Rourke was dismissed from the Mourne job in 2006 but he makes a shock return in neighbouring county Armagh as the successor to Peter McDonnell.

BBC: O'Rourke named as new Armagh boss

When Bent's name was included in the squad for the friendly against Brazil, some headlines suggested a "shock return" for the former Tottenham and Charlton striker.

BBC: Bent backed for World Cup place

At the start of July speculation in a local newspaper forced the Championship club to issue a statement denying any possibility that Hammam would make a shock return to the club.

BBC: Cardiff City hold Langston debt meeting

In the 1970s, for instance, the investment return was much higher than the market return, as the oil shock and the subsequent years of stagflation caused a stampede out of equities.

ECONOMIST: Buttonwood

In milder cases you can have a small electric shock to get the heartbeat to return to normal, or like British Prime Minister Tony Blair had last year, a procedure called catheter ablation.

CNN: 'I'd be an invalid without this device'

After the first oil shock in 1973 it didn't take long for Americans to return to their gas-guzzling ways, with a preference for large cars and big V8 engines, says automotive analyst John Wolkonowicz, of consultant Global Insight in Lexington, Mass.

FORBES: Whipsaw