Do the needs of the many outweigh the needs of the one?

The Herald reports:

A Wanaka family are at a loss what to do after their 7-year-old son was excluded from Wanaka Primary School and all other schools in the area refused to enrol him.

The family, who have asked not to be named, said yesterday their son was excluded on October 28 after throwing a folder at another pupil and a teacher.

The boy’s mother said earlier incidents at the school included the boy stabbing another pupil with a pencil on his first day at the school and being suspended twice for disruptive behaviour and biting staff.

No one wants to see a seven year old not in school, but schools also have a responsibility to other students to keep them safe.

The mother said her son could be difficult and had recently been diagnosed with attention deficit disorder.

You can have ADD but not stab people with pencils and bite teachers. At the risk of am armchair diagnosis, the kid needs a psychologist.