I have a young male argus monitor that is very smart. He has escaped twice so far and it is very hard to catch him because there is lots of junk in my basement. When I feed him, i'll leave the top off for 20 seconds. As soon as turn around to pick up the mouse he's out. I've fixed the escaping problem but my only question is that the cage is 5 ft off the ground could falling possibly hurt him at all. Thanks