His parents really do need to get to what's happening here.
I'm not saying that it's as serious as this story - but it shows the need to dig.
My 6 year old went to a prestigious junior school in the States, private, and funded by my co. During her year it came to Christmas and after the hols, one of the boys in her year wouldn't eat, cry and say that he hated the place.
Eventually the parents got it out of him, with pro counselling, that he had been buqqqered by one of the other boys...... Now where had that the attacker at that age learned that one? Yes, abuse from a relative perhaps?
The school refused to take action against the parental father as he was a big donor to the school.....result, all the year's teachers walked out at the end of the year (v.early May in the States) and many of us withdrew our kids in protest too, and informed the cops.