Brother is constantly reminding Doodle of his own debility, bringing to light Doodle's unwillingness to participate in his brother's cold-blooded attempts to point out Doodle's mortality. When Brother makes Doodle touch the casket, he knows what to expect from Doodle. “Doodle was paralyzed, so I put him on my shoulder and carried him down the ladder, and even when we were outside in the sunlight, he clung to me, crying, 'Don't leave me. Don't leave me.'”(486). Doodle is utterly terrified of the casket, and his brother is aware of it. By making Doodle touch the casket, he is imprinting upon Doodle that he can never be normal, that he will always be teetering on the brink of life and death, never to be able to live up to his full potential. However cruel Brother's actions may be, he still takes an interest in Doodle, purely for his self-satisfaction. “When Doodle was five years old, I was embarrassed at having a brother of that age who couldn't walk, so I set out to teach him.”(488) Brother teaches Doodle how to walk, but it is purely for his own conscience. Embarrassed by Doodle's condition, he tries to fix Doodle's many abnormalities, without considering Doodle's own views and feelings.
The only thing that Brother wanted was a sibling with which he could play with, and the arrival of Doodle shattered his hopes. As a result, he makes Doodle pay for it