I stand corrected: "The ferret (Mustela putorius furo) is the domesticated form of the European polecat" https://en.wikipedia.org/wiki/Ferret
They don't appear to make it into the top 10 pets of 2014: http://www.pfma.org.uk/pet-population-2014
Perhaps a ferret adoption drive is necessary! http://ferretshelters.org/