[quote=@The World]
<Snipped quote by Caldizar>

That couldn't really work because there's no "control group" for a Scale. Each Plane either does or doesn't have one, but the Planes themselves don't have anything that would be able to bar something from entering them, other than the insane difficulty of entering one other than your native Plane. Even the control group of a Plane couldn't kick you out of it, really. 
[/quote]

You could just be repelled by empty space, preventing you from entering any of them.