Explain the title Thank You, M'am.

Roger, the young boy who tries to steal a purse from the
wrong woman in this Langston Hughes short story, feels shame and regret after he is
forced to return to her home. While there, the large woman, Mrs. Luella Bates Washington
Jones, treats the boy with respect and gives him a hot meal. She does not question him
about the purse again, but only asks if he wanted the money because he was hungry. No,
the boy tells her; he only wants to buy some blue suede shoes. She tells him that she,
too, has done things for which she is ashamed. Mrs. Jones gives him $10 to buy the
shoes, and shows him the way to the door. As he leaves, he wishes that he could think of
something else to say, but he only tells her "Thank you, m'am." Because the woman, who
obviously has little money herself and has to cook a simple meal on a hot plate, is so
kind to the boy, and treats him with dignity, she earns his trust and his respect--quite
a change from how the two first met. It seems an appropriate
title.