Jacqui. If one of your neighbors did have a problem with your cats. They came to you and talked to you about them. Asked you to do something about them getting into their yard and let's say, using their flower bed, or kids sand box, as a litter box. What would you do? If they ask you to do something about it, should 't you do something about the problem? The problem you took on. That's what most people would probably do. I just feel that some people that treat the animals like the op is talking about, probably won't care what their cats are doing to anyone. They have probably never seen a vet, and are probably only fed, when they are remembered. Hopefully I am wrong, she will talk to the neighbors and the neighbors will try to remedy the situation. I wouldn't hold my breath though.