With rabbits, litter training only works if they're fixed and it can take a while to get the hang of. Hormonal intact rabbits can be virtually impossible to littertrain. Vet bills are definitely as issue, although most rabbits do not need tooth trimmings if they're given a correct diet. [genetics or injury, however, can cause their teeth to not align and grind down on their own properly, which may be the result of John's dental distresses!]