PARADOX DETECTED! Junk chippers are of destroying all junks at once. So if Junk Chipper would be also a junk, it would destroy itself so it cannot be destroyed, therefore it cannot be destroyed later so it can still exist as junk junk chipper and again it will be destroyed and again and again...
I think my home country (Czech Republic) needs to be here as digging some thing BECAUSE: We have deepest hole in world that is 404 meters deep, BUT DONT MAKE CZ FEMALE!