I live in a mid terrace with a small back yard, and a small front garden. The yard has been my little space for years, full of pots and flowers. The house next door is a rental, we've had several neighbours, some good others not so much. The latest - who have been in two years, have a cat, and they smoke. The cat keeps coming in the yard, digging in the pots, crashing through plants, disturbing the birds that nest in the ivy. Is there anything I can possibly do to discourage it? And then there's the smoke. The neighbours smoke a lot, and because of the size of the yards, it all blows into our yard. I can't see that I can do anything about that, and it makes me so sad that I don't have my little space to enjoy any more. Any thoughts? The walls are 6ft high, but of course both cats and smoke flow over!!