Stoats are the freaking BOSSES! i once saw a video of a stoat vs a snake, he killed the snake but was bitten during the fight, after killing the snake the ******* just went to sleep (coma i guess) but after a few hours it just woke up, took the snake and eat it lol... SO FREAKING IMPRESSIVE.
I would love one, or a ferret, but for domesticated i would go with dogs, corgis are awesome lol.