Bought a new 2 floor cage for 2 boars ( Pickles and Terry Crews). One floor is a bit smaller than their old cage but as 2 floors I thought they’d love it. But they won’t go down ramp. If I put them downstairs they go up but not down. As the upstairs is a bit smaller than they’re used to there is a lot of squaring up going on. Any ideas how to make them use all the cage.