Who is Eric D'Souza from Swimming Lessons and what is their importance?

In "The Collectors," Eric is the foremost "flicker" (street shoplifter), a lanky fellow suspended a few times and forced to repeat two years. Eric, who has a reputation for masturbating in class while other pupils pretend not to notice, has his eye on delicate, smooth Jehangir Bulsara, and bargains to steal stamps for his collection in exchange for masturbating him during darkened movies.