Animal control might let you borrow a trap for critters such as possums and
raccoons, and you might be able to get a cat to get into one of those for a
cheap catnip toy.

"Fred G" wrote in message
...
I live on the end of my building and there is a "catwalk" (ironic) that
hides cable and phone lines. They walk across that and make it to the
balcony. I hate to poison them, and animal control won't do anything about
cats usually. As I said, I don't think it should be my responsibility to
train her cats, but if she's not willing to keep them inside. BUT found
this
morning that one had actually crapped on the concrete (and the cat must
have
been sick... YUK!) that I had to go clean up. I've tried cactus-type of
plants on the ledge to block them, but they've managed to knock them off
and
I'm out the cost of the pots and plants.