right mind 精神正常；心智正常（脑袋没进水）

No one in their right mind would choose to work there.

任何一个脑袋没进水的人都不会选择去那里工作。

No one in his or her right mind would buy it. It's too expensive.

任何一个脑袋没进水的人都不会买的，太贵了。