Freckles wrote:
A BB gun or an air-rifle. Wouldn't kill the cat, but a few stings
might convince it that it is not welcome.

You could also get a motion activated water-sprayer that would douse
the cat if it got on your property.

Well, I'm in the city, so the BB gun would get me into a pile of trouble.

I do like the water idea though, might teach a good lesson for the little
bugger.

Jon