unfortunately, we ended up having to take him back... the neurotic compulsive behaviors seemed to increase instead of get better, he began urinating on all of the furniture (including the BRAND NEW bed!, as well as hissing at and attacking my boyfriend and the little kitten whenever either of them got near me.. my boyfriends arm was torn to shreds and the poor little baby lost a patch of hair on her head when he swiped her hard...
... when we took him back to the vet for blood and urinalysis to make sure he wasn't sick or in pain, and he hissed and growled at the vet, but not at the assistant, and everything came back fine, the vet informed us that he felt Leo was best suited as a one and only and preferably in a home with no males.
We called the shelter and they agreed that he should be a one and only and THEN divulged to us that he would get angry and swipe at people if they STOPPED petting him at the shelter... and would attack other cats at random if they were getting attention by the people he seemed to gravitate to, but they thought he would adjust and didn't think that they should give us the heads up.... they told us to bring him back and they would help us find another kitty to complete our family...
While we both felt like horrible parents in having to take him back, we feel that it is in the best interest of all involved in the long run. it will save our furniture and arms and legs as well as the poor baby... but I think it will also save HIM in the long run to find a home where he will be loved and attended to as a single kitty...
we DID end up taking another kitten home with us, and he is a beautiful little siamese mix... so now the task is back to naming the 2 kitties....
any help???
ROFL! 
)