You may well be right Gnipper, but it was not nice to see, in the wild he would be going about his business etc, not frantically running from side to side in an exhausting manner continuously the whole time, I must of watched him for almost 20 minutes while we ate our sandwiches, he flopped of exhaution shortly after we finished, as we passed by him he was flat on his side and clearly distressed, he had however recovered later.
I have read that wild polecats are very solitary animals. unlike ferrets. They will only stay with another when mating and then they will part again. The jill will