A very warm welcome to the forum! I'm so glad that you have done the right thing: you have introduced yourself and told us about your pets, not just put in a link to your YouTube channel. I see that you have found a good way to do that, by employing a user name which is the same as your channel .
I was always puzzled about the difference between a ferret and polecat - and your thread caused me to look for something to explain the difference. I found this: http://www.pets4homes.co.uk/pet-advi...ic-ferret.html
Is your polecat assertive over the ferrets?