you can take 2 pieces of chicken wire one on top of the other, Seperate them by a couple pieces of 1x1x1" foam. attach one to the the black terminal, attach the other to red terminal. when the cat jumps on the chicken wire and they make contact, well you get the picture.
Now to all you cat lovers, this will not hurt the cat, just scare the hell out of him.
It sure beats the heck out of what my daddy would have done
