Ferrets don't sweat

A group of ferrets is called a business

There is a sport called ferret played by two people (typically men so you can tell this is going to be great) where they put two lives ferrets down their trousers & try to out last the others. The ferrets while claw & bite to try to get out.

What's the world record? 2 minutes? 5 minutes? Ha, more like 5 hours it's hilarious

A neurated female ferret is called a sprite.

While it is illegal to buy a ferret, sell a ferret or bring one into NZ, if you go out to catch two in the wild & breed them together, that is legally acceptable, but only if you have a: a license & b: a valid reason, such as a rat hunter. There are two people in nz currently with this license