Comment 13 for bug 888039

I'm pretty sure you can just disable it by unticking it in ccsm, but I'm not sure if that unloads it immediately. I was 'lucky' enough to have unity completely crash on me a few times without crashing compiz, and on at least one occasion it disabled itself completely from ccsm so logging in gave me just a desktop with the gnome-terminal that I always run (for emergencies like that if nothing else).