Who is Boab Coyle from The Acid House and what is their importance?

Boab Coyle appears in the story, The Granton Star Cause. He loses his position on the social football team, is kicked out of the family home by his parents, dumped by his girlfriend, loses his job, gets arrested and beaten by the police, is slugged by a restaurateur, and then is turned into a fly by God. His unwitting mother then swats him, and he dies.