Over the weekend, I got two Mini-Holland lop ear rabbits for the "ladies of the house". We put a litter pan in their cage, it fits in the corner and hooked to the wire of the cage so they can't move it. The problem is, they keep kicking all the litter out of it. As soon as we put it in the female urinated in it, then she started digging all the litter out with her front paws. And the male was using his nose to nudge out the last little bits of litter. BUT they're still peeing and pooping in it! Anyone else with rabbits tried to litterbox train them? Did they kick all the litter out? What do you do?