Thak, Stiff, SuperHero, Omer and Kerim are part of the gay gang
Some of them are openly gay and other members are still in the closet but all of them like to suck each other cock and want to fuck other men in the ass.
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failure shower.