It should stop when it is spayed  if your neighbor does not have it done I
would take it to a low cost spay program and have it done for him.  get the
wake up shot with it and the furball will be back the same day and the
neighbor probably won't even know it

Male cats = neutered
Female cats = spayed

My babies
http://members.aol.com/larrystark/

Your neighbor's cat needs to be neutered *immediately.*  This is not
guaranteed to solve the problem, but there is a good chance that it will.
It may take awhile for you to see the effect.  The longer your neighbor
waits, the less likely it is to be effective for the purpose you are
concerned about.  This really should have been done *long* ago because your
neighbor's cat is past the age when he could already have become a father
(which produces still more kittens in a world where shelters have to
euthanize most cats that are brought to them).

Let your neighbor know that there are many other benefits.  For males the
benefits include:
· eliminating testicular tumors,
· preventing enlargement of the prostate glands,
· and preventing injuries and diseases associated with escaping and roaming.
(Note:  I saved this information some time ago from a source that I can no
longer locate on the Internet.)

MaryL

Encourage her to get the kitten neutered as that wil possibly curb his
spraying (but may not, now that he has the habit!)  Google "garlic" in
the cat groups (alt.cats, and this group) and you will find a remedy.
-L.