reckless, grape shoots, shoot from the hip, holster, teach reckless actors a lesson

The suggestion of a restructuring of Huarong has already started to reshape how investors view China's most powerful financial institutions

ECONOMIST.COM

Will China bail out Huarong—or teach reckless actors a lesson?

As for Mr. Truman, Mr. Lippmann remarked: “I never thought that his quick way of shooting from the hip was the way the Presidency should be conducted.”

Yahoo labelled as ‘reckless' for backing Google over China stance

By Jamil Anderlini in Beijing 2010-01-18

支持谷歌 雅虎被指“草率” 英
雅虎的中国合作伙伴阿里巴巴称，“

雅虎上周就谷歌事件做出的声明和支持谷歌立场的表态，由于缺乏事实根据，因此是草率的。阿里巴巴对此并不同意。”

Bryan Whitman, a Pentagon spokesman, denounced the Chinese actions as “reckless, dangerous and unprofessional.”

shoot from the hip
to react to a situation very quickly and with a lot of force, without thinking about the possible effects of your actions

His critics accuse him of shooting from the hip when challenged.

shoot from the hip

Speak or act recklessly or impulsively, as in Steve isn't very tactful; indeed, he's known for shooting from the hip.
This expression transfers the fast shooting accomplished by drawing a gun from a holster and shooting without raising it to quick speaking or acting. [Slang; mid-1900s] For a similar transfer, see shoot off one's mouth.

holster 
noun [C]
a small case usually made of leather and fixed on a belt or a strap, used for carrying a gun

reckless
adjective
doing something dangerous and not caring about the risks and the possible results:
He was found guilty of reckless driving.