I live in a terraced house, with a 6 foot brick wall at bottom of garden. behind this is a cul de sac and so the wall is now the side wall of the house behind, well its garden actually. Yesterday i noticed something shiny on the wall from my lounge. Watched for a bit and realised there were many cats comi up to the bowl and eating from it, including mine. Then birds started to eat from it. I went outside and reached up to see that it was a bowl full of cat biscuits. bearing in mind that I have spent months trying to get cats that arent mine away from my garden as they keep coming into my house, I pushed the bowl away as far as I could. ive got up this morning and it is back and full up again and my back wall is now resembling cat alley! I dont want to fall out with this house owner, i dont know him apart from sight but I want him to stop doing this so how to I tackle it politely?