A typhoon was passing by my part of Japan. There were really strong winds today. Due to the wind, the power went out at NOVA a few times during my voice class. This prevented the end of lesson bell from ringing.
The ending of one lesson and beginning of the next are marked by chimes. Without the chimes, nobody left their classrooms. Eventually one of the teachers noticed that everyone had gone overtime with there lessons, meaning there were only a few minutes to get to the next lesson before it started. Although it was a bit stressful, it was fun to watch everyone scramble to get ready for the next lesson.