Dirty habits die hard and the only way to encourage auto makers to adopt clean technology is a short sharp shock in the fuel price.

FORBES: Dirty Little Habits: Cleaning Up The Auto Industry

Long intervals of pleasurably high income punctuated every now and then by a short, sharp shock.

FORBES: Bond Funds: Higher Yields, Higher Defaults

You need a short, sharp shock and very strong intervention from the beginning.

FORBES: Dirty Little Habits: Cleaning Up The Auto Industry

Barry Anderson, Conservative councillor for Adel and Bramhope, said it was time for people who drop litter to be given "a short, sharp shock".

BBC: Leeds City Council uses security staff as litter wardens

Rather than the short-sharp-shock needed to burst any bubble, Treasuries have seemingly been undergoing a slowing of demand, a release of air if you will, that may reduce the risk of any actual pop.

FORBES: It Started With Tulips, Now Bubble-Watchers Are Looking To The Bond Market