Well, we're putting him back in Special Ed. again! Kid needs remediation, starting with a dress code. No more Wack Sparrow in the school zone. No wonder his little nymphet punches him; she knows decorum and he's causing her to be teased by all those kids who think he's, er, "cool."
Every 8 year old driven to school by his mom in her nightie and curlers because he missed the bus (yours truly) knows that the odd family member is not being thoughtful or kind, because kids are like chickens—they'll see a "different" kids and harass her bloody. Changes the whole social dynamic in school. Tarl is being vicious to that girl for his own amusement. Between that and crawling in bed with her (per Sam), he should not be allowed to be responsible for her. Red alert.