I actually DID c lose my chams tail in the door. Did not even know it until I saw him trying to move but not being able to. It freaked me out and his tail turned black on the end. I thought it was going to fall off but thankfully it did not! It stayed like that for about 4 days and gradually the color returned. As far as the blackness on my cham's tail that I posted about in the other thread, my vet seemed to think it was of neurological nature and thought he was lacking bloodflow to the bottom of the tail. It was never confirmed but just a theory of his. Hopefully in days to come, your chams tail will go back to normal. Like I said, if the tissue becomes hardened looking like it is going to fall off, then get her to a vet. Good luck!