Ill-gotten rewards

While checking the list of children who were going on the Year 7 Reward Trip to the Science Museum, I got a shock. Top of the list was one of my most troublesome students, a boy who constantly gets in fights.

How had he been judged as one of the top ten students in his year? I was informed that he had a 100% attendance record. While I'm aware of the need to combat truancy, this seems to reward quantity without taking note of the complete lack of quality.