thats funny, one of mine used to do that too. she would get in her hide, push up and just wiggle her way to a new spot. it was like watching the hide suddenly levitate,move over, and then park.That's cool. Only thing I can think of is how Toby used to move his hide (before I switched him to a bigger one), if the temperatures weren't exactly to his liking. He had a cave on each side, but if neither were good enough, he'd move one to the middle... I never caught him in the act, but assume he did it from the inside. They really are smarter than some people realize - not the smartest animals, but not that dumb either.