Embarrasing experience

There is one day that I won't forget for thr rest of my life. That's the afternoon I was practicing in the swimming pool. It was our school team's training time and the coach was there, too. We always swam a lot and for a long time. All of my friends liked to trick the others during the break time. On that day, someone showed us a new way to use the swimming caps. He made a strange sound with it. When he put it near his bottom, it made a sound just like a fart. After the short break time, we often had timed races. I borrowed the swimming cap and tried to make the same sound, but suddenly there was a loud sound: Boom! My face quickly turned white and soon turned to green and I looked at the two pieces of the cap in my hands. It was his time to race. This is the moment that I will remember the rest of my life.