Several months ago we noticed our neighbors in their backyard with a videocamera. No problem, it's their right to videotape their own backyard. But we started to notice that they would sit out on their porch with their videocamera when our small children were playing at their playset... with nothing else going on anywhere else. We then noticed that they were videotaping us when we were out on our deck. When we mentioned this to some friends they recalled an incident several months ago when they dropped their minor child off at our house for a birthday party and our neighbor was seemingly videotaping their own sidewalk... then when the father turned around suddenly he caught them pointing the camera at them as they entered our home. These neighbors have always behaved oddly and rudely, and they seem a bit unstable. We have no confidence that they will "do the right thing." We don't want to confront them unless we have the law on our side. Any helpful suggestions? Thanks!