By adding a fine, what they did was communicate to the parents that their entire debt to the teachers had been discharged with the payment of 10 shekels, and that there was no residue of guilt or social concern that the parents owed the teachers.
因为增加了罚金， 原先他们同家长间的交流， 让家长们欠下老师的债务 变为了 10锡克尔的罚金， 家长们也不会因为感到欠了老师的罚金 而觉得内疚或者受到社会关注。