You can make it so you can't control the cube, I've seen it before...
But that's fucking ridiculous.
You can go under the map as well to kill him... it's not hard -.-.
This is an even worse reason for a ban then the cs_assault thing... At least with this one it's pretty damn obvious how to kill them...
Definitely not worth 1 week ban...
EDIT: A C4 reaches that far too...