"'Want anymore potatoes, Luke?' Mother offered that night at supper. 'Luke?' Her voice got more insistent. 'LUKE?' Luke jerked his attention back to his family... 'Er - no,' Luke said. 'No thanks. I've still got some.'"
Luke ignores his mother
Mother is getting angry with Luke
Luke is obsessed with his thoughts
Mother is pushing at Luke to eat more; she thinks he is too