I have a neighbor accusing members of me and my house hold are that we open our 2nd story home window blind to spy on him and his guest in his backyard. I informed him this is the 10 year old son's room. He said that I should talk and prevent him from opening the blinds as inappropriate activites could occur in his backyard. He indicated that he has all the neighbors knowing "what" we are doing and that he has called the police and they are on notice and watching. My question is 1) does this person have the the right to prevent my household members from opening a window blind even though it overlooks his backyard? 2) Does this person have a legal right to call the police on the occasion we do open the window, and 3) does this person have complete & total privacy in his backyard?