KO HING quarrels with MIU HEI on trivial matters and he moves to YAU PANG’s house with anger. He plays Erhu at the balcony. Somebody cannot withstand the noise and this person throws rubbish to him. HING is enraged and he shouts back. The caster takes revenge and throws even more rubbish to him and all family members are disturbed as well. At the end, HEI discovers that the caster is actually…