A 43-year-old Londonderry man has pleaded guilty to assaulting a boy he believed was bullying his son.
Cyril Ming from Grianan Drive in Derry admitted two charges of assault against the 12-year-old.
Londonderry Magistrate's Court was told on Monday that Ming grabbed the boy by the arm and threw him into a hedge.
The court was told that on another occasion Ming grabbed the boy and stood on his foot, injuring his rib cage and toes.
A defence barrister said his client admitted the matters but they occurred after his son had been bullied.
The judge said that there were other ways to deal with situations and he was pleased there had been no incidents since.
Ming was fined £200 and ordered to pay the boy £300 in compensation.