The solution in such a case would be a hide box.. My large girls all have one which fits into the 2X4 cages as well as the vison V 90 or boa tubs.. The hide box of choice is a plastic tub with an entry hole cut of the appropriate size.. The caged animals are always seen with their head hanging out, Unless they are blue then they'll retreat..This set up has been adopted by a few others lately and it works wonders.. Our Borneo's are all pets but in the case where you have a less then friendly animal it puts handle's on them and makes caring for them much easier.. Our hides are Rubbermaid 10 gallon totes with lid , 2214s I believe.. Lowes, home depot have them.. You'll find that the animal spends most of the time in there and makes cage cleaning a breeze, more often then not just cleaning the hide..:gj: