I believe this is so because when another another cat enters the house the currently living-there cat is wondering Why do you bring another cat here? I am your cat! So I believe that the cat is jealous that another cat is in the house or you have recently touched another cat. Your cat has picked up the scent of that other cat. I know this because of experiences with my cat. Your cat is jealous that the other cat interacted with you.
Any Amount Unless Your Cat Is Jealous Or Grumpy And Grouchy All The Time Or If The Other Cat Is Mean Grumpy Grouchy Or Jealous.
maybe, maybe not
I dont think you can breed them....
I dont think you can breed them....
no
Yes
Cats who tend to struggle, scratch, or bite when visiting the veterinarian are referred to as "fractious" cats.
I don't know really
You can't sell it I tried can't
We'll never know a cat's qualia, so I suppose the best answer is: Perhaps.
Yes. Especially if you are giving a lot of attention to another cat. They're like children in that they can be jealous about sharing affection. They have various ways of showing it, mostly by misbehaving. Now envy, they don't really feel; I doubt any cat has looked at a kitten and thought, "I wish I were that cute" or "if only I were a Siamese."
Cats can be very finniky about where they will let you touch them. Some cats will let you touch their tails and others will not. Before trying to pet a cat's tail, see if that cat likes to be pet at all.