my neighbor's dog keeps coming into my yard and it's becoming a nuisance. My yard is fenced in but it's a small dog and it keeps digging it's way in. I have two dogs of my own which i bring inside during the day to keep them out of the heat, my neighbors dog eats their food and drinks their water when they are inside the house. I have spoken to my neighbor about it and he didn't seem to care. what can i do?