history: I was ashamed once when I recieved a report card when I was young and I performed poorly. My parents trusted me to do well and I did not do well and slacked off.  "I was ashamed once when I recieved a report card when I was young and I performed poorly. My parents trusted me to do well and I did not do well and slacked off.". I think most people have been there.  Its tough disappointing your parents and even worse when you know you could have done something about it.
current: Yeah, but I did do better next time, so I am happy I learned from my mistake. I do occasionally get a bad grade in school. Lol.
next: I got some bad grades in college and told my parents I was doing better than I was. I know how ashamed I felt at that time too.