I'm having a problem with the neighbourhood cats. We are surrounded by houses that have grass-free gardens, whereas mine has shrubs and lawn and the cats that live on either side of us are enjoying using it as a toilet. We have cats sleeping on and under our car, hiding in our bushes and weeing on the grass. While this is all fine and dandy, they are killing the grass and its looking more like a burnt out/not looked after lawn. I'm a bit house and garden proud and we spent quite a bit of our money on getting it nice so I'd like any suggestions on how to deter these friendly felines into weeing somewhere else (perhaps the grassy park directly across the road?!!!!!!)

Thank you!