We get Polecats around here. My partner has seen two. I saw a dead one.
Saw what I'm fairly sure was a dead one on the A612 just E of Burton Joyce (E of Nottingham) last year.
Possibly an escaped ferret, but looked right for the genuine article.
The twins were minding their own unknowable business (probably related to food), totally unaware that they were being watched...
Bad cat had the advantage of height, two steps above, top right.
They noticed a movement, and sprang into action with a blood-curdling growl. Twin 2 reacted within a split second to lend its support.
Bad cat wasn't going to hang around, faced by these two. They were hungry...
... but not hungry enough to eat a cat. Having seen it off the premises, they returned in triumph
and went about their business, undisturbed.
We were lying awake in bed at the time and initially thought it was badger v badger violence, such was the noise. Sometimes noises remain unexplained because they didn't happen in camera range, but this was excitingly different. Unfortunately, bad cat wasn't permanently deterred from visiting our garden. Wonder if I can persuade the badgers to take up residence?