My Experience

This is a true story that I based on my experienced as a driving instructor:

Late one afternoon, when a male student was taking a driving lesson on the road, he suddenly entered a deep sleep while driving. Then, since the traffic light immediately ahead was red, so I took control of the steering wheel in spite ofsitting in the front passenger seat. and I stopped the car using the auxiliary brake under my foot. This way, we were back on safe ground. I made the decision that it was too dangerous for him to drive any more. So, I woke him up while stopping the car, and after the traffic light was green, I made him drive to a parking lot of a convenience store. After that, I took his place as the driver. Apparently, he was very tired because of working the night shift every day, and it was hot in summer. I didn't scold him at that time. When I woke him up then, I smiled and said to him "Hey, how are you feeling right now?" It surprised him rather than me. And I dropped him off at his home while I explained how dangerous it was to you fall asleep at the wheel and how to prevent it. At a later date, he got his driver's license and hasn't had a traffic accident ever since.

(the original sentences)
ドライバーが運転中に寝てたら、助手席のあなたはどう対処しますか？
これは、私が教習所指導員時代に遭遇した実話です。
ある日の夕方、路上教習中にある男性生徒が運転中に突然深い眠りに入ってしまいました。
ちょうどすぐ先の信号が赤だったため、即座に助手席の私が運転席にあるハンドルを動かし、私の足下にある補助ブレーキで停止し、事なきを得た次第です。
その時、これ以上運転させるのは危険と判断し、赤信号で停止中に生徒を起こし、信号が青に変わった後、すぐ先にあったコンビニの駐車場まで走らせて運転を交代しました。
どうも彼は、毎日夜勤で働いていたのと、真夏の暑い時期だったため、疲労が限界に達していたようです。
その時私は、彼に対して怒りませんでした。
起こす際にも「やぁ、具合どう？」と笑顔で話しかけ、むしろ本人の方が驚いていたくらいです。
そして、彼に対して居眠り運転の危険性及びその対策を説明しながら、彼の自宅まで送りました。
後日、彼は無事運転免許を取得し、以来ずっと無事故で来ています。