Back in the day when I first had Milo, we left him in the toilet, he was only 3 months old and although he is a little dog, he ate thru that door, and did the damage more then what I think he would have done, if we had just left him in the house.
a next door neighbour had a pet wombat, used to take it everywhere in his almost new fe holden. Always left the radio on for it when he hopped out. Forgot one day and it half demolished the interior. No more trips for it after that.