Actually, an ouro contains a *reference* to a boros and vice versa. There nothing bestial about that -- in fact it's a useful and often appropriate construct.
Ok, so what you are doing here is creating a reference that can later be set to reference a actual object instance external to the class? Ok, that's quite different.
You're just trying to goad me into writing that wiki entry on ChucK references, aren't you? :)
Hmmmm, actually now that I looked the manual does cover references (chapter 13). I think I skimmed over that section before as it made zero sense to me back then :-).