Final answer:
Hussain Khan is characterized as disingenuous in the excerpt, acting kindly only in the presence of foreign customers by lying about how well he treats the children.
Step-by-step explanation:
In the excerpt from Iqbal, the author characterizes Hussain Khan as a disingenuous man. Before the foreign customers, Hussain Khan presents a facade of benevolence towards the children, claiming they are his apprentices learning a profession to assure them a better future. In reality, he cannot mistreat the children in front of the customers, but it is implied that he does so when they are not around. He expresses false affection, referring to them as 'my own family' to convince the customers of his good intentions, thus he is dishonest to foreign customers.