How does T. Coraghessan Boyle use imagery in Stones in My Passway, Hellhound on My Trail?

Boyle uses imagery through foreshadowing to hint at what will happen to Robert on his last night at the House Party Club. Near the beginning of the story, the narrator goes back into the past to the time when Robert was fifteen, and he watched a poisoned dog named Loup die. Loup suffered a slow, agonizing death, as he tore at his cramped stomach until his intestines spilled out onto the ground. Boyle uses the dog's death to forecast Ida Mae's poisoning of Robert and his subsequent death.