There'd be certain activities perhaps, for example putting a gun to your head, that would put an end to your life.

也许会有某些特定的活动，比如用枪指着你的头，会结束你的生命。

耶鲁公开课 - 死亡课程节选

The police officer shouts for the brother, the non-retarded brother, to drop the gun.

警官要求智力正常的兄弟,把枪放下

耶鲁公开课 - 心理学导论课程节选