My vote...
... is for Booty, a fine name for an Ass methinks!
As for the fourth dog why didn't you name her "Wellard"?
We at the El Reg Iberian bureau's Donkey Affairs Department are very much obliged for all your suggestions as to how we might name the latest member of our asinine fold – the splendid jenny seen here* yesterday challenging kittens in baskets for a slice of the 2012 cute creature calendar market: Our unnamed jenny seen …
..it's normal for a child to be given a 'working name' until the real name is chosen, usually at the "Christening", some 6 weeks later.
My missus chose "Toivo" as the working name. It means "Hope".
The '-ton' bit at the suffix of a Finnish word means "-un". Naturally, I immediately named him "Toivoton" - hopeless.
Lester, I pray You don't make the same error!
Best regards to You and Your ass. (Maybe I should rephrase that...)