Cats are evil soulless bastards. Which is why I recommend them to everyone I know (and secretly/openly despise). I tell them that the nibbling is affection. This is bullshit. It's marking territory and sampling the goods. When you invite a cat into your home, you're actually just saying that you don't feel comfortable owning your possessions; you'd rather they belong to an approximately 20 lb creature with teeth and claws and a scent gland in its anus. I tell them not to declaw their cats because it's cruel, and it's like chopping off your fingers and toes at the second joint. This is also bullshit; I just like telling them that their cats climbing on them means they love them. I especially tell them that they should start with kittens so they can raise them correctly - obviously they're not going to do that. They're going to teach the kitty that "love bites" are OK, the humans are only tenants, and the litterbox is optional. I'mma stick to my dogs.