I want to see an intelligence-optimized domesticated raccoon breed, like the raccoon equivalent of a border collie
Imagine trying to keep an animal like that out of food it's not supposed to have (to include fish tanks). The dang things would probably learn to pick locks with their cute little hands.
Get a pet rat. https://www.youtube.com/watch?v=AV9z0c1hjnA
(I'll convince you all to get pet rats eventually!!! :))