About a month ago, an extremely matted, long-haired cat showed up at my door and it was quickly apparent that it was a stray that had been on its own for a while. He seemed very friendly and tried very hard to come in our house. I also noticed that he was declawed. I took him to our local shelter to see if it had a micro chip, and they told me that he did and from it I found out that he was a 6 year old male named Sebastian. They gave me the address and telephone number of his owner, but after an exhaustive search, we were unable to locate the owner and from the neighbors of the address listed were told the house had been empty for several months. He apparently had been dumped. So, the shelter took Sebastian in, had him shaved, cleaned him up and gave him his shots. We took him in and gradually introduced him to our 13 year old cat and two dogs with very little incident. However, he definitely has ideas about touching (only on the top of his head) and brushing (absolutely not). He's still finding his way, but what I don't understand is that when he wants something, usually to be fed, he will circle my legs and rub against me. If I don't respond quickly enough, he'll hold on to my leg and bite it, as if to say "hurry up, I'm hungry". Not hard enough to break the skin, but not a love bite either. He will also bite if anyone tries to touch him in a way he doesn't like. Any ideas what's going on?