Some experience when I was a child

When I was a child I am very quiet. I like play violin,but I always get many problems. My father also like music very much,so when my violin teacher leave, he liked to play a teacher to check the intonation and rhythm. Most time , my violin teacher will record a tape to me.Once I lost it and my father thought I didn't want practise so I deliberately lost it. It made me very embarrassed.Now, when I review this thing I feel every people have their duty and you have your reason to keep it and make it better , an excuse won't useful