My neighbors have an "outside" cat that likes to hang out in my yard. Unfortunately it's made my yard it's litterbox too. The neighbors aren't about to do anything to help so I have to take care of it. I have a fence but the cat can leap right over it. My first thought for a solution was to trap it then put it on a one way space elevator but the likelyhood of completing such a project in less that the next 10 years is improbable. Also there would be a lot of poo by then and the cat would have died of old age. So barring that idea, any tips on how to stop the cat?