On tonight's episode of Real World: Hollywood, we find out what happens when people stop acting polite — and start telling each other to "Shut the f*** up." Not surprisingly, most of the action this week revolves around Greg, the part-time catwalker (and online casting winner!) best known for his blank serial-killer stares and consummate professionalism at the improv theater. Check out a sneak preview of this week's show courtesy of Real World Dailies to see which roomie Greg's alienating now, and tell us: Is Greg (a.k.a. PretyBoy) living up to your expectations?