Yesterday, I failed at part time job.
I thought I had no part time job, so I wanted to sleep for long time.
I set silent manner mood of my mobile phone.
I noticed the phone was ringing.
I was late for an hour.
I do not like cell phone.
So, sometimes, I set this mood because cell phone seems to restrain me.
But I learned if I set this mood, cell phone is nonsense.
When it was necessary to coexist with carrying well, I realized it.
