I think all's well, really. Look at it this way. The snake isn't full grown and the Helhound is locked up. If he ever tells you his name is Deathripper, it is not. I decided that wasn't acceptable. Because, as you mentioned, there's children about. Deathripper isn't a child friendly name, if he happens to somehow find a way out of the vault. Which he will not.
As for the snake? You're welcome. I know how much you like them, and more so when they are not me disguised as a snake.
You can put it back in the jungle if you like, but apparently Midgardians are keen on cutting those down.