Sissy, you come up with the neatest DIY things. Imagine, a mouse trap that you changed the tightness of the spring, to snap those neighbor pups, to give them the idea that your pond is not for playing in. I wonder if they are coming for water, maybe the neighbors do not give them water. I know my dogs LOVE to drink water out of the pond, so do the outside cats. In fact, with the pond frozen the outside 18" on the bubbler end, I was watching them all the time when my little Boston would go outside! Worried she would try to walk on the ice, and fall or slip in! I already had the plan of attack to get her back out, but it would have meant getting wet and cold in the meantime. Not fun! Also, my inside cat loves to go outside (when it's not raining and not toooooo cold) and he walked the whole perimeter of the pond, on the edge rocks, which were covered in ice on Sat. I could not believe how unstable it was, he was slipping off constantly, but I guess he had a blast doing it, because I kept watching and pretty soon he went for round 2. Haha, Again, I was frightened he would fall in, so I watched the whole escapade. Very funny, should have video taped it.