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During one's whole life,he is inevitably trapped in an embarrassing moment when he just wants to withdraw himself from all guys.Of course I was no exception. Looking back on my times in high school,I always think of one thing that is embarrassing but funny.In senior grade three,I stayed up every night.So I often fell asleep in class the next day.One sunny day,I fell asleep again.I was seated by the window and the sunshine poured down through the window.It was so warm that I was sleeping soundly.I couldn't hear anything and some slobber dribled from the corner of my mouth unconsciously.What was even worse,I inconceivably had a nightmare when my math teacher,who was in charge of our class,was giving a lesson with full enthusiasm.At that moment,there was not a sound in the classroom and one could hear a pin dropped.All of a sudden,I woke up from that horrible dream.My body shook and it make two desks hit together.A loud sound rang out in the room and then I was completely awake.I was aware of that everyone was looking at me including my teacher.I was at loss and trying to relax myself.In this embarrassing situation,I slowly wiped my saliva and picked up my pen calmly.