Despite competing all season with an injured groin, Gay won the silver medal in the 100 meters on Sunday with a national record time of 9.71 seconds.

VOA: standard.2009.08.18

If you see somebody being kicked in the groin in a movie, you might yourself tense up.

如果你看到电影里有人阴部被踢中，你自己可能也会绷紧一下。

耶鲁公开课 - 心理学导论课程节选

If I had a competition where I'd give $100,000 to the person who looks the most as if they are in pain, it is a very good tactic to take a pen and jam it into your groin because you will look extremely persuasively as if you are in pain.

如果我在这里举行一个竞赛,谁最能将痛苦表演的和真的一样,谁就能拿到10万美元，那么最好用的一招莫过于拿根笔,狠狠地戳进你的腹股沟,因为此时的你看上去真的,足以使他人相信你非常痛苦。

耶鲁公开课 - 心理学导论课程节选