It was a tough task because the FBI men were untrained and some had never fired a gun in anger.

这个任务极其艰巨，因为很多FBI探员从没有被训练过，也有很多根本不知道如何在盛怒之下开枪射击。

youdao

Several years later, I heard that Jerry did something you are never supposed to do in a restaurant business: he left the back door open one morning and was held up at gun point by three armed robbers.

几年后，我听说杰利在一桩饭店生意上做了一件你绝对想不到的事：一天早上三个匪徒持枪由后门闯进饭店，用枪对着他。

youdao

Lincoln again swears that he's innocent, that the gun he had intended to use but never fired was still missing after he dumped it in a storm drain somewhere on the way home.

Lincoln再次发誓他是无辜的，在回家的路上，他将那支计划使用的、但从没开过火的枪扔到了泄洪沟里，现在还未找到。

youdao

"I remember when my daddy first gave me that gun, he told me that I should never point at anything in the house, and that I could shoot all the blue jays I wanted, if I could hit them.

VOA: special.2010.07.08

Many of them say it's remarkable that they were never pushed to the point where they want to gun at their classmates, because they feel like they know what kinds of experiences these young boys went through.

很多人认为不可思议,这两个凶手竟然会被逼到这个份上,拿着枪对这自己的同学，因为他们觉得他们知道,这些青少年男孩子们所经历的一切。

麻省理工公开课 - 媒体、教育、市场课程节选

He had written safety rules on a whiteboard: Never point your gun at anyone.

NEWYORKER: Battleground America

It was a doctrine with particular appeal to people who would never own a gun.

NEWYORKER: The General��s Dilemma

Never point the gun at another person and keep the safety catch in place until you are ready to fire it.

CNN: How we can keep kids from shooting people