Once, when calling on a youth on probation, Chang came up against the subject's mother, who became particularly disagreeable after learning of Chang's identity. From behind her door she demanded, "What do you want?
張和全無奈地說，曾有一次他到一位被觀護青年家訪視，表明身分後，青年的母親態度非常惡劣，隔著鐵門質問：「要做什麼？」